The 35-year-old Warrington captain became the most capped England player of all time when he played in last November's Four Nations final against Australia but he was omitted for this year's International Origin Series against the Exiles after being hit by injury.
Morley, who recently signed a new 12-month contract with the Wolves, has always maintained he will continue to make himself available for his country and he has kept his place in McNamara's 28-man squad for this autumn's triangular tournament against France and Wales. McNamara has dropped five players from his initial 33-man squad, including Leeds prop Ryan Bailey, who was also left out by his club for last Friday's Stobart Super League game against Salford.
Others omitted are Warrington centre Chris Bridge, Catalan Dragons hooker Ian Henderson and centres Kris Welham (Hull KR) and Kirk Yeaman (Hull) but Warrington centre Ryan Atkins and Hull second-rower Danny Tickle keep their spots after being called up for the games against the Exiles.
McNamara will take his squad away for a training camp before England's opening game against Wales on October 27.
Meanwhile, there are eight new faces in the 29-strong England Knights squad for the Alitalia Cup also featuring Scotland and Ireland.
The newcomers include Bradford forward Tom Burgess, who will be playing alongside older brother Sam at South Sydney in 2013, Warrington prop Chris Hill, Castleford hooker Daryl Clark and Huddersfield full-back Greg Eden.
Scotland have taken the place of Italy, whose withdrawal raises a question mark over their participation in the 2013 World Cup for which they have already qualified.
England elite training squad: C Ablett (Leeds), R Atkins (Warrington), T Briscoe (Hull), D Brough (Huddersfield), R Burrow (Leeds), G Carvell (Warrington), J Charnley (Wigan), R Chase (Castleford), E Crabtree (Huddersfield), L Cudjoe (Huddersfield), R Hall (Leeds), Z Hardaker (Leeds), G Hock (Wigan), B Jones-Bishop (Leeds), J Jones-Buchanan (Leeds), J Lomax (St Helens), D McGuire (Leeds), M McIlorum (Wigan), A Morley (Warrington), L Mossop (Wigan), S O'Loughlin (Wigan), J Roby (St Helens), K Sinfield (Leeds), D Tickle (Hull), S Tomkins (Wigan), K Watkins (Leeds), B Westwood (Warrington), J Wilkin (St Helens).
England Knights squad: J Broughton (Salford), T Burgess (Bradford), D Clark (Castleford), C Clarkson (Leeds), P Clough (St Helens), M Cooper (Warrington), K Dixon (London), G Eden (Huddersfield), R Evans (Warrington), L Farrell (Wigan), M Flanagan (St Helens), L Gale (Bradford), B Harrison (Warrington), C Hill (Warrington), J Hodgson (Hull KR), D Houghton (Hull), J Hughes (Wigan), M Lawrence (Huddersfield), S Lunt (Huddersfield), J McGillvary (Huddersfield), R Myler (Warrington), L Patrick (Huddersfield), S Ratchford (Warrington), C Riley (Warrington), M Smith (Wigan), S Taylor (Hull KR), J Turner (Hull), J Wardle (Huddersfield), J Westerman (Hull).