I'll give the favorite, all purpose answer to legal questions: "It depends."
It depends on what more evidence is coming . . .
When facts are in dispute, we need fact witnesses.
Questioning fact witnesses takes time. Preparing for a deposition takes a long time, then a full day to do the deposition, then check the transcript for classified info. . .
On the other hand, if (just to take a random example) loan documents indicate that Russian oligarchs co-signed for Trump's loans or (to take another totally random example) financial documents show that without . . .
In other words, the pace could go quicker.
I don't believe they will drag this out any longer than necessary.