There's an interesting thread on reddit brainstorming about raid mechanics, namely splitting the fireteam up to solve a complex problem (similar to the Atheon fight, but more complex)

https://www.reddit.com/r/DestinyTheGame/comments/3pfh1f/parallel_team_raid_mechanics_how_cool_would_this/

Just wanted to start a discussion here, to see what interesting ideas folks here have. (instead of complaining about RNG, IB, etc).

Here is my contribution:

What if the teams are split in time (yeah it's been done before, but the vex has time gates, and if it's a vex raid, there should be a time component in there somewhere). The future team is going up against a boss that can only take damage from supers, but there are no adds.

The past team has a room full of adds, but no boss. The past team has a relic. All orbs dropped in the area of effect (AoE) of the relic are "calcified" (there could be a grimoire stating that calcified light is hardened and cannot be consumed for a millennia. Some pre-golden age archaeological digs had uncovered some, but no one knew what they were).

calcified light immediately becomes available to the "future" team, b/c the millennia has passed. (or maybe they have their own relic that breaks them open).

For the past team to refill their own supers, they have to generate orbs outside the AoE, or hopefully have armor that refills their supers with ability kills.