RE: After learning to hover, what's next??
Training gear only helps keep you from tipping over when landing. If you're confident that you can set it down softly every time, the training gear is of no more use to you.
What to practice next? It's really up to you. You should be comfortable hovering in several orientations before moving into forward flight. At least from both sides if not nose in as well. Then you can move into other hovering maneuvers like circles, figure 8's, etc.. From there you are probably ready to start practicing transition to and from forward flight and then circuits, flying figure 8's and so on.
When I was starting out I tried to practice several things at once - so you don't get bored or get to used to doing one thing (and forget the rest).
Good luck! You'll start having alot more fun now!
Ben