What I see:
Haskins has been really good. Way better than any #3 we have ever had (Dobbs and Duck included). He has the talent to start, and if you're comparing stats to stats with Rudolph vs Haskins, you have to keep in mind that the Washington offense was WAAAAAAY less talented than the Steeler's O that Rudolph was running.
Rudolph has picked up his game this year, and I think its because Haskins is pushing him. He didn't wilt. He didn't become incapable of throwing an accurate ball, like what happened when Rudolph took over #2 from Landry.
If Haskins is re-signed, he will have a year of the playbook under his belt. And to do what he's doing now in his first year is nothing short of impressive. Can he overtake Rudolph? Sure he can. Will he and does he have to? No. Rudolph can play.
This is a win/win. We are going to have 2 talented, starter capable QBs behind Ben this year. The best depth since Leftwich/Batch/Dixon. Good to be deep when you have an awesome roster that is built to compete for a Lombardi this year.