While getting bugs fixed quickly is great, I really hope that this new focus on tooling means that we get new BI-related features in SSMS and SSDT. SSMS has, in particular, been shockingly bad at supporting BI developers: for example, I find it unbelievable that we still don’t have a DAX query window in SSMS when the language has been in SSAS Tabular since SQL Server 2012 (I know the community have filled the gap with DAX Studio, but that’s not the point). Aaron Nelson recently announced a Trello board where ideas for new features in SSMS can be debated but there’s very little BI-related stuff there at the time of writing.
One can hope. The big problem is getting enough support to bump items up on the backlog, and for that, there’s a Trello board.