Now that the Hannover Messe will be in game, and in the blog post they said that
"Perhaps this area might come in handy later this year, who knows?" I think we will have new truck in end September or atleast a WOT event related to a new truck.
In the end of September in the Hannover Messe will take place the IAA 2022 fair(20 Sep-25Sep), and Daimler already said that this year will show to the public the future eActros(2023/24), and Iveco said that they will launch in the fair the european version of the Nikola Tre (the first costumer will be the Hamburg port).
The relations with Iveco seems froze at this point, but with Daimler (atleast Daimler US) seem to be more fluid, we are waiting for the launch of the new WS 59x in game the same day as IRL(Probably this summer), and the reprensentative of Daimler US said that maybe more things from freightliner are coming to the game.
Freightliner recently launched the new eCascadia, maybe Daimler is planing to advertise eCascadia and eActros in game(It would be a marketing it be the first electric trucks in ATS and ETS2), they don't need to be included as drivable models right now(they have atleast the ecascadia almost done because is almost the same as cascadia daycab currently in game, only few parts change, fenders, grill, batteries), maybe they will come to WOT event as cargo, or will be drivable in a test track event.(Or maybe are coming to the game as fully usefull trucks and SCS has planed a way to recharge them, maybe adding time to the load/unload coupling/uncoupling simulating the recharge, or even recharge while sleeping)
This last update include branded fifth wheels for 3 trucks in game, Last Scanias, Renaut T and Last Actros, so maybe SCS consider this trucks up to date quality wise, and in september with a WOT event about the IAA fair we will recive the parts necesary to update the Actros to current model (Like they did with the Renaut T for example), because is the first renders the eActros seems to have many parts in common with the current actros, so if they plan to model the eActros for some kind of event, they need to do parts for the Actros anyway, so maybe this will bring us the new Actros (new engines and mirrorcams)
There are other option least exciting but equally cool and is to have the launch of the new TGX MAN as event in Sep around the Hannover and the IAA, but who knows.
Anyway that make me think that a new truck or new parts for already in game truck will come in end September