I can't answer the version because it will be a future version most likely. We want to drop it after a week after an update so we can add the new update features and be a brand new map based on the update features
It is vanilla so more players can enjoy it, may have data packs, resource pack, texture packs, custom sounds and music, etc.
It will be a giant world map 5000x5000 that is playable, reality the map is 5000x8000 in case we need to build custom areas outside the playable map
We need both of your skills. Give me your discord