Det ser ud til, at planen er ændret.

Yes, det literally means it, but here it is mainly a dummy subject.

In Danish, just like in English, you often need a subject even when you are not talking about a specific thing. Compare:

• It seems that the plan has been changed.
• Det ser ud til, at planen er ændret.

So det here does not point to a concrete object. It is just the grammatical subject needed for the expression det ser ud til.

Ser ud til is a very common expression meaning:

• seems to
• looks like
• appears to

So det ser ud til, at ... means it seems that ... or it looks like ...

Literally, ser = looks/sees, ud = out, and til = to, but you should learn ser ud til as a fixed expression rather than translating each word separately.

Because the basic verb is at se = to see / to look, and ser is the present tense form.

Examples:

• jeg ser
• du ser
• det ser

Danish verbs do not change for person the way English verbs sometimes do. So the same present-tense form ser is used with all subjects:

• jeg ser
• vi ser
• han ser
• det ser

Here at introduces a subordinate clause: at planen er ændret.

So the sentence has two parts:

• Det ser ud til = It seems / It looks like
• at planen er ændret = that the plan has been changed / that the plan is changed

This is very similar to English that in it seems that...

You will often see both patterns in Danish:

• Det ser ud til, at planen er ændret.
• Planen ser ud til at være ændret.

The first uses a full clause after at. The second uses an infinitive construction.

Because after at, Danish normally uses subordinate clause word order, which is the more neutral subject + verb order.

So:

• at planen er ændret

not

• at er planen ændret

This is similar to English:

• that the plan is changed

not

• that is the plan changed

Because planen is the definite form of plan.

• en plan = a plan
• planen = the plan

In Danish, the definite article is usually added as an ending:

• en bog → bogen
• en plan → planen

So planen means the plan.

Because er ændret means has been changed or is changed, not has changed something.

Compare:

• Planen er ændret. = The plan has been changed / The plan is changed.
• Nogen har ændret planen. = Someone has changed the plan.

So er ændret focuses on the resulting state of the plan, not on who did the action.

This is very common in Danish when talking about something that is now in a changed state.

Yes. Ændret is the past participle of at ændre = to change.

So:

• ændre = infinitive
• ændrer = present tense
• ændrede = past tense
• ændret = past participle

In er ændret, the past participle is used together with er to show that the plan is now in a changed condition.

It can often be understood either way in English, depending on context.

In this sentence, the most natural English meaning is usually:

• has been changed

But grammatically, Danish often uses er + past participle to describe a present result or state. So the idea is:

• the plan is now different from before

That is why English may translate it as either:

• the plan is changed
• the plan has been changed

depending on what sounds most natural in context.

The comma marks the start of the subordinate clause:

• at planen er ændret

So it helps separate:

• the main clause: Det ser ud til
• the subordinate clause: at planen er ændret

In Danish writing, commas often help show clause boundaries clearly.

Yes, there are several natural alternatives, for example:

• Det lader til, at planen er ændret.
• Det virker, som om planen er ændret.
• Planen ser ud til at være ændret.

These all mean roughly the same thing, though the exact tone is slightly different:

• det ser ud til = it looks/seems like
• det lader til = it seems
• det virker, som om = it seems as if

Usually the main stress would fall on the important content words, especially planen and ændret:

Det ser ud til, at PLANEN er ÆNDRET.

The small grammatical words such as det, til, at, and er are usually less stressed.

If you wanted to contrast it with something else, you might stress a different word, for example:

• Det ser ud til, at PLANEN er ændret — not the budget, but the plan.
• Det ser ud til, at planen er ÆNDRET — not just discussed, but actually changed.