Currently, MTG sets spend roughly three years in the development pipeline, so we might not see anything until 2029
Emergence Zone A key card for going off in cEDH, Emergence Zone is pretty standard fare across high level Commander decks, usually to combo off at the right time
Playing a Bloodletter on curve is particularly deadly in an aggressive strategy since it is effectively able to double any damage that gets through to your opponent
(6/15/2010) If you activate Gideon Jura's third ability and then unpreventable damage is dealt to him (due to Unstable Footing, for example), that damage has all applicable results: specifically, the damage is marked on Gideon Jura (since he's a creature) and that damage causes that many loyalty counters to be removed from him (since he's a planeswalker)
With Cauldron making up more than 50% of the competitive meta right now, it makes sense that this two-drop would find a home in mono red aggro