I love to see to discussion continues. I have to admit I am still thorn on what constitutes as progressive trance, but I have to agree prog house and prog hand has always been hand to hand. And the merging in both styles is maybe slightly more noticeable in the last 2 years. With 2020 taking helm.
As someone has said above this new trend/style is less club - y, yes, but only to a certain point. Now I spend a lot of time on dj forums and I sometimes listen interviews with djs and I have to disagree. This is the perfect mix for starting sets, every dj with huge expirience will tell you no matter what party is, the worst thing you can do is start with banging music. I will give for example MOS here in London, when I was going there on the trance night parties maybe 2/3 years ago starting sets was almost always Trilucid with this exact mixture of prog trance and house. And as a style that in my opinion will be very popular in the next few years, once the clubs open if the right djs hype it and start playing it might blow bigtime.
I'd like to give another example from my last mix
Gidge - Perimeter (Shorter) definitely feels more trancelike, hypnotic, melodic, but at the end a prog house track surprisingly close to trance
CRi - Stranger - same as the above example - definitely more hypnotic, melodic, trancelike
Carsten Halm - Indigo definitely more houselike, but still very melodic almost trancelike, but at the end a prog house track surprisingly close to trance