XRB (raiblocks.net) will close distribution
Fork coin (raiblockscommunity.net) will continue distribution
There can hardly be a fork of XRB with continued distribution, if Collin (Dev) still holds control over private keys of genesis & distribution wallets (and he decided to stop distro and burn the rest). If this is still true, only Collin can either burn or continue distribution of original XRB - no one else can.
Ergo, if @raiblockscommunity group decides to continue faucet distro model, they will need to start the new chain with new genesis block.
Uh, no. They can fork just like BTC and BitcoinCash forked. They just split off into two chains.