In Part 2, there will only be 2 LIs (Zelene and Brielle, the LI in my pfp). There will also be a small number of side girls as well.
Part 3 will definitely be the biggest of them all. It'll have 4 LIs with Love Paths as well as a "harem" path. I'm putting "harem" in quotation marks because 3 of the LIs won't be involved in the "harem". The "harem" will consist of one of the LIs plus whichever side girls you want to include who are willing to join the "harem".
I want to make it clear from the start that Part 2 and 3 won't just be clones of Tides of Succession with different characters and a different plot. Some of my future projects will be long, others will be short. Some will be more of a fuckfest and depraved, others will be purely sweet and romantic. Some will branch heavily, others will be more kinetic. The only constants will be pregnancy, as well as the fact all my AVNs will have at least two, very romantic, monogamous paths.
Alas, that's all in the very distant future. For now, all we have to worry about is Tides of Succession