What is the future of the NFL with the QB situation???

I mean..apart from P. Manning- Brady-Favre(who is retiring soon) and a few bright spots like Romo and ???? well who.. Manning is in his 10th yr and his little brother is wishy washy and my Texans have an ok Schaub..but just not many out there.. who is there to keep the NFL interesting in the next 5yrs