This for me is a tough one. If anything though, I'd have to say I've been severely let down by Monolith Soft and the making of Xenosaga. To me, Xenogears (Created by Tetsuya Takahashi, when he was still with Square) was a game that really hit home with me. The vast storyline, phenominal storytelling, riveting game play, graphics and unorthadox combat system, music score kept me wanting more from Xenogears. No matter how many times I beat it I would feel the same way, time and time again; It really was/is a game that makes you think 'What if'. Truly for me, this is my all time favourite game on any platform.
When I heard they were making Xenosaga, with the formation of Monolith Soft I got excited. Being as Xenogears was Episode 5, it was a great chance to see the story from the beginning. How it came about, what lead to it, etc etc. Though after playing Xenosaga, I was profoundly disappointed at the direction it took and how it felt as there were no corrillation (Sp?) or anything showing that it was the beginning of the story. Poor gameplay, even worse storytelling not to mention horrible voice acting. The only thing that was any improvement was the graphics, and even then I felt those were lacking for the time. I gave up playing Xenosaga after the first one, haven't touched either the second or third installment, nor any of it's other platform games, which at this point it's nothing more then pettyless money grabbing.
Who knows. Perhaps if they do decided to do a Xenosaga 4, it will make sense and actually do some tying into the Xenogears story. I'm not gonna hold my breath on it though.