They wrote themselves into such a corner with ME3 that this "reboot" barely qualifies as one
Cant use the Normany so just design the Tempest to look like Normandy 3.0
Go to another galaxy but drag along every race from the Milky Way because they don't want to let them go
Cant use the Citadel so just design the Ark to be a mini Citadel
Cant use Shepard but still have an N7 character
Main character still working for an official organization
Its funny and sad at the same time. I was hoping for drastic changes, but I guess Mass Effect Andromeda is just going to turn out to be Mass Effect 4.
For me, it's kind of exciting to see them go off in a different area of space so that they have the breathing room to write new stories and not have a lot of the baggage from the previous game tying their hands together. Especially with how they ended the last game I don't envy them trying to figure out how to keep it going while pleasing everyone's decision....it just wouldn't have happened unless they hadn't given us ANY choice at the end. Many would argue they didn't anyway, but I'm not necessarily in that camp.
You're going to see similarities but it's the context that matters. The things you listed are part of the Mass Effect DNA, kind of how Star Trek always has a Captain and there's always the Enterprise. I'd also nitpick a number of the points since they're pretty broad generalizations, the Tempest might serve the same kind of function but it doesn't look the same and the Alliance would make similar looking ships...we do all the time, story wise it makes sense for them to bring some of the other races, and we have zero info about the supposed N7 with us. And why wouldn't they send Alliance special forces with us on what is most likely going to be a partially dangerous mission?
Everything makes sense in the lens of looking at it in universe. You may not enjoy the reasoning behind why we're there and that's fine, that's your opinion but I feel personally that I'm happy we're getting new things to do and see and aren't really tied down to the decisions we made in the original trilogy.
I hope ME:A is the beginning of a new series, it's going to be fun!