Well if what Khu is saying currently is correct then there's going to be a feature in v3 (so Indigo Disk) that allows distribution moves to be given to Pokémon again;
The above tweet is Khu confirming a move tailoring, something that allows us to choose(?) moves for Pokémon and he mentioned something about distribution moves prior to that, so putting together his pieces implies that event-only moves are going to be re-teachable.
However Khu did confirm that they can't be used in competitive. So there's that, not sure what Smogon would do with it but V-Create Ray may be back on the table.