In an ideal world yes...
Back in the day all classes ran with 6 cells. But with 6 volts and 4,8 volts for touring and 1:12 (with good reasons).
And a single LiPo cell being 3,7 volt... you get into lots of issues... which are not resolved for these classes.
Tourers would of course jump straight onto 7,4 volt LiPos... but then they'd face the same problems as before (read the AGM notes from previous years, LRP had a lot to say about this, and 5 cells has worked according to the intentions).
1:12 is totally unclear as to LiPo - I've not heard any serious developments or testing going on...
So... if being forced to do a "general voting" at the EFRA AGM for all electric classes I strongly feel the answer will be a NO!
Btw 1:12 TR is very fun to drive! Totally different from OR, but it still has it's charm!