Well, I don't really care to much what is the latest trend but I will chime in anyways. I am 19 now and have to say that pretty much all my friends don't give to shits about anything pre '64. They like tuners and exotics. There a very few who like late model muscle and even fewer who like classic ('64-'70) muscle. My dad and all his friends are in their '40's and '50's they all seem to go for the muscle cars like 1970 Challengers, 1969 Camaros, 1969 Chargers, etc. There are a few who wouldn't mind a tri five but besides that not many people I know care for pre '64. If you want my honest opinion for us HAMBers the next big ones will be Model A's followed by '49 - '54 Chevys. Model A's are everywhere. Every mag I get now has atleast 10 in them. I get mags from all over the world; Germany, Australia, New Zealand, England, etc. And they all have countless Model A's. When I go on YouTube and look up hot rods mostly all the vids are of Model A's. You go to the toy store and look at die casts there are millions of Model A's being built. Go to any hot rod shop and you will see a few. The kids my age that are into hot rods are seeing all these Model A's everywhere and are eventually going to want one. I am overseas now but as soon as I get back I will try and get one before it is to late.
32 seems to be the magic number , Personally My favorite is a 29 sedan ,I like stockers and rods , I dont plan on building one .I have the 29 roadster and the 32 truck to finish , Ill be over 50 when the truck is done.I only work on one at a time and putz with the truck ...If I decide later to build a car it would be a hudson,Something simple where the frame is figured out and steering ,Just basically bodywork ,motor and mechanics, Basically because the turn around would be faster.
I don't know what the future trends will be. In the 70's, restorods were big, the smoothy streetrods came along in the 80's, the ProStreet movement next. Now it seems that everything is a traditional build. Though it won't be popular for me to say so, I can see the traditional movement eventually following by the wayside as did its' predessors. Nothing stays around forever. You guys that have been in this hobby since way back, can back me up on this.