It's totally unrealistic to think that WGT are going to drop the XP-level based purchasing system. Anyone who became a legend at L70 would then be able to save 1000s of credits by buying the best equipment. It would make most of their range obsolete. At L92 I will almost certainly buy the L94 driver when I get there despite the gap between my current, that and the new one being pretty small.
A while back a few of us were calling for clubs to be restricted by tier to stop low tier players having the best equipment and easier tees but WGT has addressed that by making it harder to avoid tiering up.
My concern about new clubs isn't about the level they''re offered at but what they might do to a game where the scores are already too low. Slower meter nike balls and a driver that hits further are only going to make that worse. Uneven lies anyone?