I place a bet with a colleague i want to be sure if anyone has useful information about ETH please share here thank you.
yes, of course
and not only ethereum but all solid altcoins with active development will hit ATH even create new high in price mate
The possibility to reach its old ATH depends on how too the development and that's a very difficult thing to be achieved again consider it will have needed massive demand. that's something that can't be achieved in a few years.