Would be hard for them to stay twin turbo what with them not being twin turbo now
Supposedly keep the ICE(not exactly but similar), two smaller turbos, no mgu-h, mgu-k, small battery, presumably either much smaller mgu-k, say 60bhp, or 160bhp still and 10 seconds of it per lap maybe, if lucky. Sounds pretty lame really, they might be lighter, but they'll be vastly less efficient and require way more power. Supposedly higher fuel flow limit to increase power to compensate but I figure we'll be back up to 140-150kg of fuel so any engine saving goes back to fuel. Fuel saving will likely be a much bigger thing. But technology wise these engines are going to be a HUGE step backwards, which defeats the purpose of F1 being the bleeding edge. The hybrids in WEC are frankly second only to the current F1 engines but when F1 takes a huge step back WEC will have far superior and more interesting engine technology.
The whole thing is to help out Honda rather than help the sport.... the best way to help the sport right now is to push Honda out till they can prove they can make a good engine. They are basically reducing the difficulty level of F1 to help out those who can't make a good engine when the whole point of ultra elite level competition is to get only the best of the best to compete.