I have the following trip planned for April,

MEL-ORD-LAX-SNA-SFO-LHR-SFO-ORD-CLT-ORD-SYD, all on UA.

As I currently have no status, I'll be doing this trip in the back of the bus, however, as I will become a 2P for the first time during the ORD-CLT leg of this trip, am I correct in assuming I qualify for E+ seating for the CLT-ORD & ORD-SYD legs of this trip.

That being the case, is it possible to have E+ seating assigned for these flights when I ticket the trip, based on my future 2P status, or do I need to wait until I actually gain the status.

The main reason for the question, is that I only qualify 4 days before the CLT-ORD-SYD flights, and will assume that all window seats in E+ between ORD-SYD (well ORD-LAX-SYD) will be long gone by this point. Of course if I'm not eligible for E+ seating as a 2P this is a moot point anyway.

Thanks

Beck