Re: Royal Jordanian future fleet.
They just got a couple of Dash8Q400's to reinforce the regional network. RJ is also set to join the OneWorld alliance soon...
I speculate the 310's will be converted to freighters in due time and there will be more Airbus mix (320/330) to replace the aging early series A320's and 310's.
For long Haul the 340's are fairly new.. unless new routes are opened i think there is no need for more ultra long haulplanes.
My two cents and my guess is as good as yours...