The next quesiton we need to think about is:
Will money be removed from the market or will it flow to ALTs?
Since crypto is currently a hot market I don't think everyone will remove their money from the market, sure there will be some profit taking but i think a lot of people will want to find the next "rocket" ALT and will spread their money across the ALTs. Some money will be removed but I think that will mostly be removed from Bitcoin. I am just going to try and time as best as I can and move my money from Bitcoin (maybe keep around 20%) to interesting ALTs.
Referring to your second question, money will never be removed from the market and i am saying this on my previous experiences. Few weeks before Bitcoin started to dumping and people were holding the BCH and it got very high pump in small amount of time. In case ever BTC is dumped, of course all the altcoins will move up as people will sell btc for alts and this has been happening whole this year.