Hello just new here what do you think will happen once
BTG mining is started
is the difficulty going to burst
because of miners fleeing in the new coin
feel free to post your or reply your comments
What coin do you mean? BTG is Bitgem - very old coin (from 2013 year). It can be found at the thread
https://bitcointalk.org/index.php?topic=207008.0.
Could you give us more info?