Spartan IV's in mk6 gen1 armor

So since it’s possible to use the mark VI gen1 and older models of armor, do you guys think they’d actually still let spartan IV’s use them?

The suits were probably scavenged (and refurbished) to bolster the armor selection. But since the original suit’s performance and image is well-noted, it could fall down to personal taste. Some people may like the older style armor.

It’s probably the same deal with the MK. IV GEN1.