It's just my guess, but Gigolo will probably be going away now that Thunar can mount remote shares. The whole reason for Gigolo's existence was to mount what you tell it to (there, I said it for you :) ), so I don't see why it would be sticking around much longer.
The panel improvements, the ability to edit menus, and the ability to mount remote file systems directly from within Thunar are the big user-facing changes for 4.8. The back-end improvements in 4.8 (using dbus, policykit, gio, etc.) should make for a bit quicker releases down the road. We can be optimistic about this, anyway. :)