Its been 17 years Porter has been using the same livery. To my opinion its pretty simple and lacks character. I know its very conservative, so I though of a lil upgrade yet nothing too elaborated as they seem to want to keep a discreet touch.
the stripes on the bottom design are gradually switching from black to blue-black.
This being said. i really believe they are due for a change
That's a beautiful paint scheme, but it doesn't fit the airline's motto of "Flying Refined."
I could see an update version of the current design being adopted. Bring the blue and the text on the tail down in a straight line at the same angle as the front of the vertical stabilizer down and around the bottom of the fuselage. Then take the logo and plaster it larger on the plane.
Basically the same major changes that WestJet did to it's branding.
Agreed with a refresh needed for the paint. At minimum large billboard titles or some sort of elements fading onto the fuselage from the tail like from your concepts. Not a bad one you made although I would have continued with navy blue.