We’ve got several things in the works, much of which is in active development, while others are still being investigated. We can’t go into too much detail at this time, but we’re working on:
Matchmaking Improvements for Rumbles
Free Build and other new formats
Friend Challenge for existing Rumble formats
Updates to Masters Ranked LP Formula
Adding Tournament Style Open Decklists to Best of 3 Rumbles & Opens
Improving ways to show off your collectible rewards
Experimental mystery event
Grassroots Tournament Program
I personally think the LP bugs, especially in APAC, should be the #1 priority being worked on.
After that, the Rumble matchmaking improvements, friend challenges for Rumble formats, and open decklists for Rumbles are features that should have been considered part of the beta and it baffles me that they launched the beta, much less the official release, without these....