I'll add a few of my own more TLD specific .. as for me I don't like to generalise as I think each TLD is very different and shouldn't really be lumped together. New and rebranded TLD's will polarise. Meaning some will continue their eventual path to eventual mass acceptance (.club, .co, .blog if they get less greedy with premiums) ... While others fizzle out.
- .com: Will continue to rule .. and will continue to grow .. but I do see it very slowly losing overall market share as the combined sales of non-.com will grow a bit faster as the general public slowly catch on to the fact that there are other TLD's out there.
- .net: Unlike most people I see .net really hurting. If it hasn't already it will lose it's status as "second favorite generic TLD after .com". However I do see it actually remaining strong more as a niche TLD for pretty much anything technology. So similar to what .io has become .. although obviously on a much much bigger scale building upon it's already huge existing base.
- .co: After seeing a few small/medium businesses use .co in their TV ads this year I really am starting to .co seriously (have registered quite a few single-word single-terms this year). LLL.co's are liquid, and there are some decent sales coming in consistantly. I also think the slightly higher renewal price keeps this TLD out of trouble from spammers etc (relatively speaking obviously).
- .club: In all honesty I don't own a single .club .. but this is exactly what the entire new TLD program should have been about. A good solid wide niche upon which to build upon and a decent marketing team/strategy.
- .io: I'm concerned that .app could hurt .io quite a bit. That being said .io is pretty much limited to new tech companies. So while I see good tech words doing very well .. the rest will likely soften.
.xyz: Wihle this TLD has the most registrations .. 99.9% of them are garbage bought at a cent .. later next year when renewal time comes around the numbers are going to melt to nothing. Spam is a concern here as well. .xyz will still be a little better than others .. but still more or less junk. I'd rather have a premium .biz than a .xyz.
I'll add more general predictions later ... Happy New Year to all of you in the meantime!