If she follows the trend with the trickier masters in the transition to M2E, I imagine she will maintain the basic flavor of her first version, which was largely centered on movement shenanigans, with some upgrades for buffing/debuffing, etc. The main thing with a Collette crew, and Gwen played her so could provide better insight maybe, was that she relied heavily on her crew to do the work while she distracted the enemy. So I imagine her basic playstyle won't change in that regard. That and she had Coryphee, which had the triple threat of being fast, killy, and resilient.
Basically, with a lot of the M2E masters, they simply lost some abilities or actions that were situational and not often used, but kept thier signature spells or playstyles (Raspy still ice bombs stuff, Sonnia still firebombs and attacks CA, Lady J is still a beast with her sword (don't let her get charged first), Perdita shoots things, Nicodem is supposedly the summoner he was akwasy meant to be) and in some cases brought them in line with what the designers had intended them to be.