További bevizsgálás lesz holnap.

Because lesz is the future form of van (to be).

• van = is / there is
• lesz = will be / there will be

So:

• Vizsgálat van. = There is an examination / inspection.
• Vizsgálat lesz. = There will be an examination / inspection.

Since the sentence includes holnap (tomorrow), Hungarian naturally uses lesz.

Hungarian often does not need a separate dummy subject like English there.

In English, we say:

• There will be further testing tomorrow.

In Hungarian, the idea of there is / there will be is usually expressed simply with van / lesz plus the noun:

• További bevizsgálás lesz holnap.

So lesz already does the job that English splits into there + will be.

További means further, additional, or more in a formal or neutral way.

It modifies the noun bevizsgálás:

• további bevizsgálás = further / additional testing

A useful thing to notice: további does not change form here. Hungarian adjectives often stay the same before a noun.

Examples:

• további kérdés = an additional question
• további információ = further information

Bevizsgálás is a noun. It is derived from the verb bevizsgál (to examine / test / inspect, often in a technical, medical, or official sense).

So:

• bevizsgál = to test / inspect
• bevizsgálás = testing / examination / inspection

This is similar to English pairs like:

• to inspect → inspection
• to examine → examination

The ending -ás / -és is a very common way to form nouns from verbs in Hungarian.

It is understandable, but it sounds somewhat formal, technical, or administrative.

Depending on the context, native speakers might more often say:

• További vizsgálat lesz holnap.
• Holnap további vizsgálat lesz.

Vizsgálat is often a more common and broader word for examination / test / inspection.

So bevizsgálás is not wrong, but it may sound more specialized than everyday speech in some situations.

Hungarian word order is flexible, and it often reflects focus or what is being presented as the main new information.

This version:

• További bevizsgálás lesz holnap.

sounds like a neutral statement: There will be further testing tomorrow.

Other word orders are also possible, with slightly different emphasis:

• Holnap további bevizsgálás lesz.
  Emphasizes tomorrow a bit more, or simply starts with the time expression.

• További bevizsgálás holnap lesz.
  Puts stronger focus on holnap: it will be tomorrow (not some other day).

So the original sentence is fine and natural, but Hungarian word order is not as fixed as English word order.

Holnap is an adverb meaning tomorrow. It is already a complete time expression, so it does not need a case ending here.

Hungarian often uses bare time words as adverbs:

• ma = today
• holnap = tomorrow
• tegnap = yesterday

So in this sentence:

• holnap = tomorrow

No extra ending is needed.

Hungarian often omits the article in sentences like this, especially when introducing an event in a general way.

So:

• További bevizsgálás lesz holnap.

means something like:

• There will be further testing tomorrow.

If you added an article, the nuance could shift depending on context:

• A további bevizsgálás holnap lesz.

This would mean more like:

• The further testing will be tomorrow.

That version refers to a more specific, already known testing event.

So the no-article version is natural when simply announcing that more testing will take place.

Yes, that is possible.

• Holnap lesz további bevizsgálás.

This puts holnap early and keeps lesz close to it, which is also natural Hungarian.

The meaning is basically the same, but the information flow is a little different. Hungarian allows several correct word orders, and native speakers choose among them depending on emphasis, style, and context.

Very roughly:

• További bevizsgálás lesz holnap. = neutral announcement
• Holnap további bevizsgálás lesz. = starts from the time frame
• További bevizsgálás holnap lesz. = stronger focus on tomorrow

Yes, it sounds fairly neutral-to-formal, especially because of bevizsgálás.

You might hear something like this in:

• a hospital or clinic
• a lab
• an official report
• customer service or technical support
• an administrative message

A more conversational version might use a different noun or a fuller sentence depending on the situation.

In a neutral reading, the sentence would usually flow quite evenly:

• További bevizsgálás lesz holnap.

If the speaker wants to emphasize tomorrow, they might prefer:

• További bevizsgálás holnap lesz.

In Hungarian, word order is one of the main ways to show emphasis, often more important than strong voice stress alone. So learners should pay attention not just to the words, but also to where they appear in the sentence.