Paid content? Nah. This update will be free, like the rest of 'em As far as new weapons, bosses, etc I can't say but you can see all of the spoilers we've posted so far here: https://forums.terraria.org/index.php?forums/pc-re-logic.85/Very beautiful!
But how about new paid content?
We really need new suits, weapons and bosses. Please!