Don't hold your breath!
The new A350 sounds less and less convincing as time goes by; now, they're talking about an entry into service date of 2009/10; when you have an airplane that's basically playing catch-up - which is what the A350 is doing for the 7E7, you need to have it on the market beforehand. With a service date this late - even after the first 7E7-8s enter service, many airlines will look at both types and say "why Airbus"; the 7E7 is a generation ahead.
If Boeing brings the 7E7-9 forward, I still think it has a very good chance of getting the nod from EI.