Anyone hear if their going to bundle 2 DLCs together on one disc like they did for Fallout 3? (not talking about a FNV GOTY version with all the DLCs)

Dunno.

it has not been announced, so we can only speculate. but more than likely there will be at least a GOTY type of edition when all DLCs are released.

I'm doubtful they'll do a disk release until GOTY due to downloading content becoming the norm where as it still wasn't that common when dlc for 3 was coming out.

Wait until next year.