What difference does this all make?
What will change when the Law starts being enforced?
I suspect life will go on as normal, I highly doubt more than a tiny handful of businesses will actually ban gay people. Those few shops will get angry letters some of which might go viral and everybody will go on living.
As for Gen Con moving? As I understand it they can't; at least not till after 2020 when their contract expires. The reasons for selecting Indy haven't changed; they need a centrally located city in the US capable of housing close to 60 thousand visitors. There really aren't many cities here that fit the bill... Chicago does but they would have to fit it in around all the other events in that city. No really Indy was their best option for the price and convenience. I seriously think this will have blown over by 2020 and they won't move at all. Just look at all the crazy laws already on the books that aren't enforced, this seems destined to join that pile.