The fact that not all content will available at launch will have a negative impact on review scores I think. Sure they might take it into account that the extra content will release soon and be free, they won't award extra points for content they haven't played yet.
For example that online tower mode looked awesome and might have contributed to a higher score but it won't in a scenario like this. Same for more technical maps and additional online options. Voice chat might cause a couple of points to be substracted as well.
I say 83
(For me personally it looks to be a 9/10 though)
Spending warm summer days indoors
Writing frightening verse
To a buck-toothed girl in Luxembourg
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