As it has now been posted elsewhere, I can now post the 2015/2016 Stagecoach order allocation:

Alexander Dennis Enviro400MMC Euro6
10431-10442: Oxford
10443-10451: Wigan
10452-10456:
10457-10487:

Scania N230UD Alexander Dennis Enviro400 Euro5
15211-15220: Fenstanton (Guideway)
15221-15225: Lillyhall (GOLD Spec)
15226-15249: Chorley (GOLD Spec)
15250: Torquay (GOLD Spec)
15251-15260: Exeter (GOLD Spec)

Scania N230UD Alexander Dennis Enviro400MMC Euro6
15261-15290:

Volvo B8RLE/Wrightbus Eclipse Urban 3
21301-21310: Fenstanton (Guideway)

Alexander Dennis Enviro200MMC 11.8M Euro6
26001-26019: Cowdenbeath
26020-26023: Barnsley
26024-26033: Rawmarsh

Alexander Dennis Enviro300 Euro5
27211-27228: Glasgow (Note: Presently two versions - the list I have lists the entire batch for Glasgow, the one so far revealled online has 27226 as for the South West)
27229-27237: Wigan
27238-27254: Stockton
27255-27272: Birkenhead Rock Ferry (GOLD Spec)
27273-27286: (GOLD Spec)
27287-27299:

Scania K230UB Alexander Dennis Enviro300
28721-28741: Cwnbran (replacing 27188-27205)
28742-28746: Banbury (GOLD Spec)
28747-28748: Lillyhall (GOLD Spec)

Alexander Dennis Enviro200 Euro5
37301-37319: South Shields
37320-37326: Gloucester
37327: Hastings

Alexander Dennis Enviro200MMC Euro6
37401-37405:
37406-37423:

Optare Solo SR Euro5
47941-47966: Carlisle
47967-47980: Leamington (GOLD Spec)

Optare Solo SLR Euro6
48001-48002: Carlisle (Honister spec)
48003-48020: Exeter
48021-48025: Kings Lynn

Volvo B8R/Plaxton Elite Euro6
53801-53812: Aberhill

Volvo B11R/Plaxton Elite I Euro6
54241-54257: Buchan
54258-54262: Glasgow
54263-54276: Rugby Megabus

Van Hool Astromega TDX27 Euro6
56028-56050: Rugby Megabus (Left Hand Drive)