Couple more pics from their Twitter. To fly across the water the planes need a couple mods, life rafts, high frequency radios, radios for use in Europe (
8.33 KHz spacing) and a couple other things. It'd be cost prohibitive and unnecessary to do this to all the planes, so assuming this is one of the ocean-modded planes, this one might be committed to the east coast and we might not see her out here much unlike Mickey who flies throughout the system.
As for the little blue part that remains unpainted, they said on FB that they were unable to put the pattern there. Dunno why. Might be a sticker actually.
I prefer WestJet's tail to JetBlue, who debuted a tartan tail back in September. Might be where they got the idea.