Well, PA's got I's 376 and 476, so what's another...
Anyway, you could make the part between the Turnpike and 80 and x70, x76 or an x80.
The part between I-80 and I-86 and be an x80 or x86 and keep the rest just I-86 and I-390.
I'm afraid that may not be that simple. There is no direct access from I-76 (Turnpike) to SR 11, so making any section an I-x76 is out of the question unless there is an interchange built, which is probably not going to happen. http://maps.google.com/?ie=UTF8&ll=41.033091,-80.73992&spn=0.0073,0.013797&t=h&z=16
But an I-x80 would make sense between I-80 to the northern terminus or an I-x90 spur between I-90 to SR 531. But an I-x70 would be much better despite not having access to I-70, terminating at I-470 instead. Upgrading it to a U.S. Route is also a possibility, since newly designated U.S. routes must be routed through two states.
One more thing: Can we please keep the I-99 rants out of this thread?
This thread is reserved for the discussion on (Ohio) SR 11 and the possibility of it being an interstate.