Rocket league is a finished and established product. They also don't seem to have any big plans in the near future. They are totally fine with selling season pass and crats/keys. They don't seem to care about new content in form of gameplay changes, or fixing month old bugs for that matter.

I'd argue that it's the perfect time to 'sell out'. They already won, it is now a good point in time to move on and do something else.

Being acquired by Epic could reduce headaches in these areas:

- Logistics behind eSports leagues.

- Managing server scale, stability and performance.

- Managing platform cross-play.

- Managing publishing across multiple platforms.

I think that the logistical overhead of keeping the lights on is at the expense of Psyonix's ability to provide meaningful content updates and keep the core gameplay fresh.