I guess it's been a good year for fans of mesh coils, and those with alternative wicking materials, but they are more alike than different. Same goes for the multitude of open and a few closed pod systems.
As for the mainstream, big air tanks on mods with lights and color screens only goes so far.
As a comparison, with same juice, I compared my Valyrian to an older se1 (from the much maligned Rafale/Crown 2 family). They say vaping is subjective, but the flavor on the old school tank is so much better that it's not even close. Finding the fixed final version of the Crown 2 coils, however, is problematic.
Not much factory support these days for the tfv4, Crown 2, or Herakles/H+ coils. Even the tfv8 cloud beast is getting thin on the ground, though compatible coils exist.
Also, with the China trade situation, prices should continue to increase. Sure, there are enemies in the FDA, nonprofits, politics, and media. But- the industry is basically a one source supplier being Shenzhen. That could be a bigger threat than the others.