There is another season of DLC coming and the game will be supported into next year. But as far as "definitive" goes, I think the changes they made to the endgame basically cement it as finally being "done", as far as what it needed in the first place.
The stuff they're adding over this next year largely seems to be supplementary content for fans of the actual game itself, rather than "we need to fix the broken stuff so people will buy it". Episode Ardyn won't matter to anyone who hasn't already played FFXV, for example.
I'm curious to learn their plans for this second season.
I enjoyed FFXV mostly, even if the main story needed fleshing out, but I've not returned to it since 2016. With the announcement that their DLC plans are finishing in 2019 and with PS5 looming, I really hope Tabata makes a final edition for PS5. Maybe if he tasks it to a very small team and lets them create a more integrated experience at the same time. It'd be a good experience for those dudes too.
From what I've read, it seems like Episode Gladio would fit in without much problems as it is, and both Episode Prompto and Ignis could be worked in with some minor changes. Depending on what his plans are for Ardyn, Luna, and whatever else, a PS5 edition of FFXV with everything worked into one campaign could be quite killer.
Even the first half of the game could do with fleshing out, but I think that's not important now. With Ardyn and Luna, I would hope the focus is more on new areas. And beyond that, I'd have liked more content from Noct's POV, although that seems unlikely if he's not planning on adding to the main game now. I think the real major addition I'd want is Regis in the invasion to serve as a prologue for the game (and you could even incorporate Luna here), but that damn Kingsglaive makes that unlikely.
There would've been so much potential in a Regis and Luna invasion scenario. Not only could you integrate flashbacks to their time with Noctis and others, giving focus to those relationships and depth to their characters, the simple scenario of escaping an invasion is pretty ace in itself. A lot of potential. It would've been an excellent prologue.
Still think the most ideal DLC route should've been:
1. Insomnia Invasion Expansion - Retcons Kingsglaive, and focuses on Regis and Luna as playable characters. 5-7 hours major expansion.
2. Episode Ardyn that focuses on Niflheim.
3. Expanded Altissia with the other bros. More build up with Luna and Noctis too.
4. Expanded Tenebrae with the bros.
Something like that. Whatever the case, I'm just going to wait until 2019 for my second play through. More time away allows for it to feel fresher when I do. And I'm just going to do one big play through while playing the additional DLC at the appropriate times.
