Over the next 5 or 6 months here are a few options I thought of that would help pass the time and keep the fanbase happy.....

1) Put the old campaigns in the History node allowing everyone to play through them if they missed out.

2) Bring back Black Armoury..... The overall asthetic of that season was one of the best.

3) Ads extra rewards to old seasonal content that is still available..... Add things like Synthweave, alloys, shards, exotic engrams and bright dust piles as rewards for higher tier completions in Deep Dives and Altars of Summoning.

4) As a bare minimum reset Ada bounties so we can get more Synthweave.

5) Reduce all the focusing costs for current and old playlist weapons to help people chase down their desires rolls.

I know a lot of this is very unlikely but one can hope.