I agree, the voice acting sucks. While yes, a lot of the original voice actors have passed on, there are a few still with us and still others who filled in for the Remastered game that did fantastic work. After watching this trailer, it's clear to me not using them was a wasted opportunity. Tennent's Scrooge is probobly the best, but even it was just so-so. The triplets and Webby really annoyed me and don't get me started on Launchpad. While I enjoyed the basic idea of adventure, I felt how it was presented was off as well. The new theme song singer(s) are equally as bad.
However I still have to admit that I LOVE that Donald is a bigger part of the stories. To me that was always the biggest flaw with the original show.
Listen, there are going to be "fans" that attack people up like you and me for not kissing Disney's butt 100% of the time, but if something isn't good, it's just not good, and there is nothing wrong about calling that out. I'm well aware that there will be many who will claim we haven't seen enough, but these same people will keep saying that till the series is over. If I sample something at CostCo and it tastes nasty, I don't need to buy the whole box to confirm what I already know from the sample. That's the point of samples and ergo TV and movie trailers.
I bet despite the suck fest I watched, it's going to be super popular and that's wonderful for everyone who jumps on board. For me, it continues what I've known for a while, and that is that A.) the reboot is normally never better than the original, B.) reboots are made for lazy reasons, and C.) modern pop culture sucks and has sucked for a while now. The best is mostly behind us, and that sad thing is, few seem to care.