Before Giant Bomb's review, it was practically on the border of 94/95. Since then, there's been 15 reviews with an average of 96.1333. One 80 reduces that to 95.125, so EDGE would only need a slightly higher than average weighting to pull GoW back to 94. And we all know they have a much higher weighting than that.
If we assume EDGE has double the average weighting, then GoW needs 3 more perfect scores to avoid dropping back to 94. GameCritics probably have low weighting, so if we assume half average weighting and they give a 70 (probably best case scenario for both), then GoW needs a total of 6 more perfect scores to just balance those two out and make it back to 95. Doable?
Edit: also discounting GameCritics, if Edge's weighting is less than 1.68x the average then 95 is safe. idk what it is exactly, maybe they only go up to 1.5x