There's been enough unrest in the past month that I think Wizards is going to make B&R changes because the community is clamoring for it. With less than four weeks to go, it's probably a good time to step away from brewing and just play what's performing well until the hammer falls. Hopefully the decks I've been keeping my eye on to try will still be relevant on April 16th.
I would not be surprised. I have given it thought about trading my workshops for duals. Not just because of a possible restriction, I'm just undecided if I want to go back to a more typical blue deck vs. 2 Card Monte.