Dunno if anyone else has but I just tried adding my crysis 2 retail key to my origin account and it works which I suppose is worthwhile doing to claim it but I assume it also lets you get any updates for it easier as well as making it count as a game you own which is probably really only good for bragging rights but knowing EA it could end up having other benefits in the future.
Steam/Origin: Ps2jak2
CPU : Core I5 6600K 16GB DDR4 2800MHZ Video Card: RX480 8GB
uXc TS - Gone due to lack of use. Possibly getting a discord.