As it stands, the best gear available is at level 242. The developers realized belatedly that having bolster bring everyone up to 250 changed bolstering from “put players on an even starting plane with room for improvement” to “progression doesn’t matter,” which doesn’t exactly help matters. There’s a similar gap between the top end gear and the bolster effect as there was for the game’s previous expansion, but Musco apologizes for the poor communication; whether or not the change improves the sense of progression will require a bit of time to test.
Source: Official Site via Dulfy; thanks to Brandon for the tip!