Has this coin made any new development after the reward change, what is next?
Development is always ongoing. Currently lead developer is working mostly on completing the 'Witness Sync' development as it would be a major improvement for the wallets and is possible in a fully decentralized way thanks to the witness system. I would like to refer you to the latest GAB minutes:
https://guldenadvisoryboard.com/notulen-gab-22-09-2021/