Speedbirdie,
All that follows is yesterdays plan, I am not aware of todays plan and I have no inckling of tomorrows plan.
The long haul 767s retire finally at the end of summer '16 and the long haul trips are either 3, 4, or 5 days long. Almost all short haul days are 2 sector (there and back) trips. very occasionally there is a 4 sector glasgow trip and we have a strange 3 day trip with 3 sectors on day 1, day 2 off down route and 1 sector early on day 3.
Come winter '16 we will be down to just 7 SH aircraft so everyone is hoping that it will become very inefficient in the last 2 years but I doubt we will be so lucky.
Also be aware that when the 767 finally retires you might not have sufficient seniority to bid for a long haul fleet and you may be directed to the airbus. That said the 767 fleet is a very friendly and happy fleet with very reasonable rosters at the moment compared to the A320 and 747.
Regards