I have no doubt Roblux will continue to make mountains of money. The amount of people playing it is mind blowing and I’m sure there are additional ways to monetize their ecosystem.
As a side note - it’s cool to see them play so well together and I even play with them too to engage with them on something they enjoy. On the other hand, I sometimes get concerned with how much they play and how addictive the micro transactions are for kids their age. Then again, I spent most of my days growing up playing games like EverQuest, WoW, learning to program, etc. , so it’s hard for me to judge.