the Halfords bikes never did seem to stick to the usual model year timetable.
Breaking the “traditional” Year model cycle makes sense, why launch your 2016 MTBs in late 2015, when peak sales time will probably be spring/summer?
at which point the 2016 model is ~six months Old, no longer new and shiny and the next model will be out soon.
Drag your feet a bit, more time to plan, procure and polish up the literature/website; start the main sales push and initial stock up in ~mid-late March, aim to peak June/July, minimum left over stock for discounting through Aug-Feb, so they have more time to plan the next year…
Rushing “next years” model into the shops before Q4 probably doesn’t generate many more sales…
All total speculation… 🙂