Something I was just thinking about. Bring back the old void key mission system but repurpose it with different rewards. I'm not sure what those rewards could be. Maybe resource bundles like 1-2k polymer bundles, 5 neurodes, 1 forma, etc or maybe non-prime Warframe or weapon parts? Maybe Syndicate medallions and relics? Maybe just entirely random rewards? I don't know, just an idea I thought might be fun.