For a 3D fix the receiver needs at least 4 satelites in view. Egnos will not change the receivers ability to see more satelites, it will just improve the accuracy of the ones it can see.
Egnos is on at the moment but is not officially comissioned. More details from
ESA
On my Gps I have just turned it back on after it was making it do all sorts of weird things last year.
Tim'mers