I cannot think of another A318-likely airport with a 5.5 degree approach (if there are others I will doubtless be corrected very quickly
) so this would seem to be aimed squarely at LCY.
Does it have a larger footprint than a 146 ? If so wonder how it will be accommodated on the ground; would new gate stands be required ? Only place for such would appear to be east of the terminal building, filling in more of the KGV dock.