Forum Discussion
As of right now I'm going to say it's very unlikely and that's coming from a player that owns all packs to date.
I am a bit of a completionist but the sheer amount of content that's likely to be pumped through this store is probably going to be overwhelming and I still have so much content I haven't even touched in my game.
I also really don't like the idea of virtual currency - I hated this in The Sims 3 days - and the content showcased so far seems to more modern run-of-the-mill themes that seems geared towards a particular player type that isn't me (although Reader's Nook and Rustic Nest so look charming) - I crave fantasy and whimsy and rely heavily on the beautiful work of CC creators for some of the fantastic content already in my game and I don't see this changing any time soon.
I think for the time being I am going to sit back and see how things unfold in the coming months with the Marketplace and the franchise more widely.
If what's been rumoured about Project X is true, I also am reticent to continue to pump money into the game.
I have absolutely no intention of moving to another game and having to restart with DLC (I'd only be tempted if all existing DLC was ported over but that's very unlikely). No, I will continue enjoy my The Sims 4 game using all of the features and utilising the variation of mods I have to provide the depth I so desire in my life simming.