Questions & Answers about Sastanak će uskoro početi.
Će is the (clitic) present-tense form of htjeti (to want) used to build the future tense. In Croatian, clitics like će normally go in the second position of the clause (roughly: after the first “chunk”).
- Sastanak | će | uskoro početi.
So it comes right after Sastanak.
Croatian commonly forms the future as:
- ću/ćeš/će/ćemo/ćete/će + infinitive
Here, the infinitive is početi (to begin/start), and će shows 3rd person singular (he/she/it will).
So Sastanak će početi = The meeting will start.