I think Shadowkeep was a step in the right direction. I think instead of adding new planets, they should flesh out the planets that we already have. Like whats the use of Titan and Mercury? So much of Titan is blocked off and is only used in missions. Why not just let us go there? It's already there just open the door and add some enemy spawns and chests. And Mercury has a whole mechanic that's only used in missions. The Infinite Forest. Like there is so much on Mercury but its blocked by The Infinite Forest. Open up The Infinite Forest. Imagine if we could just pop into The Infinite Forest and travel in it and its just randomly generating areas and maybe after like 10 open doors theres a boss that has like a chest or something and maybe you could go into the past, simulated present, and future areas. It could be really cool and would actually give Mercury a use. Add more areas to planets and give them more uses.