There are some good indications that Salty has turned the corner. The first is that he's 27, the age you'd expect a player to start his prime years. Add to that the fact that he took a very nice step forward last year in his age 26 season and flashed moments of this kind of dominance here and there.
I don't think anyone is going to argue that he's likely to be a .900 OPS hitter for the next 4-6 years, but expecting him to drop back down to his career averages is ignoring the fact that those numbers include his age 22-25 seasons, an age range where most guys haven't even cracked the major league roster yet.
At the moment, his ISO is .297, a jump up from last year's .215 which will probably come down a bit, but his walk rate is 6.2%, almost exactly the same as his 6.3 from 2011. So his increased BA and OBP are both dependent on a 2.5% increase in his contact rate and an almost 8% jump in his HR/FB rate.
So some regression is very likely, but I think some people here need to be reminded of what regression means. Or, more specifically, what it doesn't mean.
When a player is due to regress, it means he's due to return to his true talent level, not that a hot streak is due to be cancelled out by an equivalent cold streak. ZIPS has him hitting .239/.300/.446 the rest of the way, which seems reasonable. If he's actually in the middle of a break out year, he'll probably hit better than that, but for now let's assume last year was a demonstration of about what to expect.
That would leave him with a .306 OBP and a .495 SLG on the season which would still leave him as one of the more valuable hitting catchers in the game. And .801 OPS would have been good for 8th best in the majors last year among catchers with 300 or more PAs.