The second officer gig, when it works out is a great opportunity....unfortunately many have been selected and put in a pool, and used to fill any gaps as needed.
There is obviously a hierchy on whom gets called....if somebody is in the pool with 4000 hours on type they will be called before somebody with no experience which makes sense for many reasons, especially considering the length of training required for a s.o.
As already mentioned there doesn't appear to be a requirement to interview again after a year.
Only speculation on my part....I do not know anything, but as I see Al Maha airplanes parked on the ramp in Doha I would assume they are planning on starting soon and may be a chance for some of the swimmers in the pool?