I'm starting to expect the US carriers to go to the European model of flexible "first class" seating, being just coach seats with the middle seat not bookable. That way, they can adjust the F to Y capacity, so you shall no longer be able to get a F seat upgrade to Florida ever again, 'cause there will probably only be two rows of it.

The CRJ-900s and E175s are probably safe, because they don't have much more space to utilize from the first class seats anyways. Hello grounded 757s and Airbii?