I’d actually argue that no, we’re not seeing a huge problematic development here.
Let’s say this Part 1 is a production and size of a game like FFXIII. I don’t know how it is but they claim it is so whatever. That means high production values. Top quality animation, well presented cutscenes, voice work, sound design, high fidelity visuals, detailed environments, high polly character models, plenty of game systems to program, hdr, Atmos sound, 4K visuals whatever. A AAA rpg. A new mainline Final Fantasy.
Let’s look at how long it took to develop other modern rpgs.
Dragon Quest XI-2013-2017. About 4 years. Announced in 2015
Persona 5-2011-2016-5 years.
Mass Effect A-2012-2017-6 Years
Witcher 3-2011-2015-3.5 years
Kingdom Hearts 3-2013-2019-6 years
Dragon Age I-2011-2014-3 Years
Horizon-2011-2017-6 Years
Nier 2-2014-2017-3 years
Valkyria Chronicles 4 2015-2018-Sounds like about 3 years
This isn’t factual or in depth. Just based on release date and when wiki sources for the year when the game entered production. But the point is clear, no big rpg is coming out in 2-3 years. No AAA game is taking that little.VII Remake is a brand new game. If part ones comes out this year I’m not seeing anything really crazy about it’s development time.