When Do You Think Sims 4 Will End?

This is first time I've actually invested money into the series and bought all the packs. I don't want them to move onto the next to have to start all over again.

Edit to add:
There's still so many more previous packs and new ideas to be included. Finishing it anytime soon would make it feel incomplete. Personally I think it's got plenty of life and opportunities left in it.