I think it would be rather cool if players were able to unlock skills in PVP, but at a slightly slower rate than you'd be able to unlock them in PVE (unless you were extremely good at PVP).
The system would be something like:
1. Take the time it takes the average player to unlock x skills in PVE.
2. Take the time it takes to gain x Fame in PVP.
3. Award "training credits" alongside Fame in PVP.
4. Develop a Skills Store which lets players use training credits to unlock skills at roughly 80% of the rate they could in PVE - naturally Elites would be priced higher, based on the rate of unlocking x Elite skills in PVE.
Just thought of this idea based on a couple people I know who wished they were able to spend all their time in PVP rather than playing through the PVE. I kind of agreed, despite stating to him that PVE was very short and easy. Even though it is short it'd still be awesome to be able to spend all your time PVPing.
A
