I don't. There's no money in running someone elses spec-cars. OMSE is the RX-version of M-Sport. They need to be a place where they can make cars, sell them, run them for others, sell parts etc.
Discussions with who?
Rally1s are done. More likely there'll be a teams championship including Rally2s if there's not enough WRC27 constructors to constitute a constructors championship, else they...
We dont know what discussions are going on behind the scenes especially with Hyundai and M-Sport.
I wouldn't be surprised if they extended Rally1 for another year to give them time to build...
If I am not mistaken, 2026 is the last year where you can build Rally2 car according to current regulations...
WRC mainclass from 2027