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A line down the W side of the Square, between Scheat and Markab, points to the mag 1.2 star Fomalhaut, the mouth of Piscis Austrinus, the Southern Fish.
The influence of Scheat is gaining strength as Uranus is applying within one degree of this star, soon to be followed in conjunction with Jupiter.
This is important because Scheat has long been associated with catastrophic events.
Aviation has been effected before when planets conjunct Scheat, as discussed in
Pegasus actually supplies only three stars of the Great Square: Markab, Scheat and Algenib.
Update: Jamie Funk kindly linked to this article and added an interesting fixed star connection: "The fixed star Scheat is 29pis31.