No, it will not.
I think the facts are
- pops/economy system is much more simplified in IR in comparison to Vic2 (which is not necessarily bad), though it is surely a complex mechanic in comparison to other PDX GSGs.
- IR has a complex character system, which Vic2 does not have at all. And people continue to ask for even more development here.
- IR has much more complex warfare system, which Vic2 does not have. And again people ask for further development of it.
- IR may potentially have more complex Diplomacy system.
The game simply cannot be popular in the scale of Eu4, Hoi4, Ck3 if it includes a lot complex systems, which is the direction IR chose. Mark my words - if IR continues to add features and build up complexity, it will remain a niche game for a relatively limited number of real fans (like it is now). This is surely good for them, but not really good for a lot of other people who would want more focused and streamlined game experience in that era. People just wanna have fun