I think we will see something similar, but in a lighter version.
This also depends on the price of BTG after coming to exchanges.
The BCH story showed that you can earn good money on selling forked currency, so people think this will be another case
I don't think so. Segwit2x has way more support than Bitcoin Gold. Bitcoin Gold is just a small experiment, it's an actually good one because it uses equihash and I would like to see if miners are interested in that, but Segwit2x is a serious attack on Bitcoin, they have corporations backing it, so im sure a lot of speculators are going to lose recieving B2X coin. I think B2X will be worth more than Bgold for a while, even if it ultimately both B2X and BGT will be worthless.