I would love some mods with new levels and replacing the bots with different characters. Specifically, I read an interview with someone from Epic who mentioned the possibility of replacing robots with Dinosaurs (!!). I’d also love a gore filled version similar to Gorn where we can pull off arms and heads in the same way we do bots.
More generally, id like an endless mode where I can choose the number of bots that spawn at once (if your PC can handle it, why not try surviving a wave of 500 spider bots?)