As far as this case, I think it's utterly bogus. Frankly, and as I pointed out upthread, even Dems cringed when this case was brought, thinking it quite questionable.
But here we are and the reality is, it's happening in a place that is VERY liberal by a very large voting margin. So, could there be heavy anti-Trump bias on that jury and could Trump lose any case in that scenario, regardless of the case? That possibility certainly exists - we'll just have to wait and see.
As far as the ramifications of Trump potentially losing this case (and I think that is possible) and then losing an appeal (far less likely, IMO), that's getting to be a few too many what ifs to spend my time with.
I think it's remarkably disgusting that this tactic (case) is even happening, and I agree with Trump that it is insane that he is sitting in a trial day after day due to what I think is a part of a very heavy-handed, strategically timed use of lawfare to try to cripple a political opponent.