No layoffs yet. Merger has to go through first. But the people who will be let go afterwards are already marked for termination. I have seen the Excel sheets where they collect the names. There is even a plan for staggered reductions as opposed to big bang layoffs.
So if you have a good relationship with your manager, they might even tell you if you are on the list and if you are in Stage 1, 2, 3 or 4.
Bumped from @PL4XqIv-2vlf for info.