Why will he risk his reputation and come up with another Altcoin, what Satoshi achieved with BTC is legendary and I believe he will prefer its remain that way. Rumour has it he owns more than 1 million Bitcoin at the current BTC price he is one of the richest man in the world and he is set for life. I know he is not in it for money because he would have at least sold some of his coins but decided against it
For sure people will no doubt to transfer into that coin knowing that Bitcoin's creator did make some coins which is better than btc or version of it which means it do
shows about the death of bitcoin in that case and its really impossible to think of it even if we are saying about "what if's" on here.
Making rich is someones own action and it isnt a responsibility to those who do create coins or satoshi himself. Be wise if you do like to get
rich and dont presume out that devs/creators will really be making that kind of offer or opportunity for you.