This message was buried away at the bottom of the order page on the Nintendo e-shop for the Collection of SaGa:

"This title has largely been replicated in its original form, but several changes have been made to meet evolving cultural and social norms."

The same message is displayed every time you start the game. In the original version, talk to Johnny in Giant's town, and he'll tell you how to get into Giant's town proper: "One of the stairs is colored differently. Use that to get in." But now, he'll say: "One of the stairs is pigmented differently. Use that to get in." So far, this is the only obvious example, but the word pigment sounded so wrong in that sentence that I went to check on my old game boy color (oh crap! I mean my old game boy pigment! Pigment, is what I meant!), and yes, it used to be 'colored'. There's a few other changes, like the starting weapon for robots is called a pistol instead of a colt, but that's not as jarringly bad as using the word pigmented instead of colored when describing an inanimate object that is a different color to the other inanimate objects around it.

I can only hope that nothing major has been changed. I'm also glad I still have the original carts of the first three games, just in case I'm

SPOILER WARNING!!!!!

no longer allowed to cut God's head off with a chainsaw, stop banana smugglers in feudal Japan, and beat up the ocean.

EDIT FOR FURTHER CHANGES: the terrorist enemy has been renamed 'partisan'.