We updated the legacy XBOX360 controllers for MW3. Legacy controllers can expect an update every year for each new release of Call of Duty games, or, if some new amazing feature is available in between holidays, a second driver release.
The Legacy controllers have less memory, and are connected to less buttons, than the XBOX 360 Ragnarok. The Ragnarok can do more. For example, autospot for battlefield that was added to a driver update for Ragnarok can't be added to legacy. I don't know how to make there be more driver updates for legacy when the hardware is getting tapped-out in terms of its capability.
Macro controller is, well, timeless. You can make your own macros so it doesn't ever need updates.
PS3 and XBOX360 Ragnarok both got extra driver updates this spring to add some significant functionality.
So while we do get boat loads of requests for the legacy mods, a lot of those requests are impossible to fill due to the hardware. For example it is impossible to have jitter on a Tyr's Hand. It's impossible to have anti-recoil on anything other than macro controller. etc. Did you have any specific mods in mind for legacies I can add to the list?