since the debolstering support was added to the game much of (including myself) that I haven't really checked out - too busy with my mains I think... The other big issue is not having decent gear readily available.
Anyways it would be cool to have a even in only one of the previous tiers (eg tier 2 or tier 3) and the players then (temporarily) leaving T4 to check it out.
It could be a good way to test RvR changes (if any) in previous tiers, maybe whilst T4 is under change as well...
To get players started a simple questline would give them good gear to get started.
Add some NPC monster that appears at RvR objective(s), add repeatable kill quest for it - I'll call that done.

