That could be. I certainly was excited to play as Duren and Karna since they are the only two party members from the original YsIV. But, I thought about it after writing this, and I think it was just several smaller quality-of-life changes, too. Like, for example, in Ys Seven, party members you were controlling were usually invulnerable. I hosed Ys Seven really hard by just switching to a different party member right before I would get hit. It was really annoying in Ys Seven how you had to clobber every enemy after they died for more constituents, where as in Memories of Celceta, only certain enemies did that, and it wasn’t even 100% of the time. Not having to triple tap every_single_enemy you killed made it feel like I wasn’t wasting so much time. Finally, I think retracing virtually all of my steps in Ys Seven made the second half feel remarkably boring to me.
Also, there was one main difference in the story that I didn’t like:[SPOILER]Memories of Celceta featured Eldeel and the Eldeen civilization, a race of winged people that held onto untold information and technology which was passed on to tons of people. This was hinted at in Ys6, which tied the Ark of Napishtim to the Eldeen, and even the Galbalans (kind of stupid, since Galbalan was described in Felghana lore as some demon that was sealed away and would do terrible things if it came back, etc). Memories of Celceta not only explained how this process works, but they even tied Altago’s technology to the Eldeen.
…BUT, they UNDID the connection of the Black Pearl to the Eldeen civilization. Ys IV (both Mask of the Sun and Dawn of Ys) was basically made to be the third game in a trilogy of Ys 1, Ys 2, and Ys 4 (I can’t tell if the new Celceta takes places before Ys3 like the original Ys4 did). And, for all that was different between the two versions of YsIV, one of the only similarities - and one of the most important plot points - was the revelation that the Black Pearl from Ys1-2 was originally Eldeen technology. My least favorite thing about the Ys series is that after YsIV, every plot boiled down to “The Eldeen did it”…but, considering the great lengths they’ve taken to tie every single adventure back to the Eldeen, why did they undo the only one that was kind of interesting!? [/SPOILER]