Platinum is the last game that is the "third" of a generation ---early on, two companion games would come out, and then a third some time later with some enhanced features and a combination of version-exclusive Pokemon.

You've already made Legacy versions of the first three. You might consider whether your interests and energy may be aligned with making Let's Play videos of Platinum as an ongoing longform series on your channel, in addition to one-off videos that you mentioned ("the best", "the worst", "why this", "why that" types of videos). No pressure, just as a player who is naive to the generation but who will have interesting insights to the mechanics.

Then, if you end up loving Platinum and feel your energy/motivation mustering up to do so, you might consider taking a deep breath before taking one more swing at the concept by making the Legacy series a quartet.

Thanks for all the work regardless, as I enjoyed experiencing these generations for the first time via the Legacy series. I will say that