The F100 overall dimensions are not that different to the Q400.
F100 - Length 35.5, Wingspan 28.1
Q400 - Length 32.8, Wingspan 28.4
Provided the Fokker parks on the northern bay it shouldn't cause any issues. Besides, if they all leave BNE at the same time, the Fokker will be half way home, and the Q400 getting airborne before the ATR makes its inbound call.