The whole thing about an album aging well or not is down to the craftmanship behind it IMO. And the reason all M, LT and THP feel "dead" to many is probably down to the fact the band either rushed it or didn't create a focal point to it, in order for a listener to appreciate it as a whole through time. The reason HT may feel outdated by many is most likely due to its sound, nu-metal is not relevant in this era but once you put that aside one may appreciate it better because it has that craftmanship to it, it was their baby. To me that kind of dedication is also shown in MTM and ATS, and in THP the songs that remind me of that are MTG and ALITS. Hence why many here while expressing their opinion in different shades, agree that the band should take their time for LP7 and not just put something out for the sake of it. I admit one thing that concerns me and others a bit is the lyrical quality, which isn't necessarily linked to the time it took to write a song but the ability of the authors to express themselves. So it'll be intriguing to see what's going to happen now that they've decided to take the "lyrics first" approach.