Street Fighter X Tekken is to gain a replay analyser and a fresh set of gems with which to customise your brawling partnerships.
The exact nature of the analyser is unclear, but the description on the US Playstation site reads:
"A tool that will show you various data from a replay. Study up on the replays of your favorite players, or your own to take your game to the next level!"
Hopefully this should offer button input data, at the least. If you're interested in the gems you can read up on the details over at Capcom Unity.
Street Fighter X Tekken scored a very respectable score of 8/10 in our review last month.