Sure, those who don't have them will want them re-done to a greater extent than those who don't (because more of them will be satisfied with their something over the nothing that others have, and as Chigger says, many will be pissed at having invested money in something destined to decrease in price), but that doesn't mean that these are top notch figures that aren't in need of updates.
Sure, the accessories on those figures are very nice, but damn. The sculpts and paint apps on those heads?
https://www.mwctoys.com/REVIEW_040207b.htm
If folks were so happy with them, then why are the Hicks custom heads so popular?
--edit: I actually think that Drake head is pretty nice, but the paint job is sucktacular compared to current standards--