Like everything else, this is VW complicated...
Initially, the Golf 7 R for our market will have to come from Germany because Haldex/4motion isn't fully supported in North America yet. The only other Golf 7 that will come from Germany (initially anyway) is the eGolf in 4-door trim. To avoid more certification expense, Germany stipulated 4-door only for our Golf 7 R coming from Germany as well. However, VWoA fought for both transmission choices this time around and got both manual and DSG models approved.
Could the 2-door come later sourced out of Mexico? Yes it could. When? That's a big question and would be at least a couple years out. It is probably complicated a little bit by a special edition Golf above the R but I can't talk about that rumor...
Jamie from Vortex is the best inside source we have with VW
So.. it seems like they aren't aiming for a limited edition this time.