Aberforth Dumbledore to be in the OotP movie

[Virginia Villamediana]

Yesterday TLC reported that WB hired Jim McManus to be Aberforth
Dumbledore. Since Aberforth doesn't have a mayor part on the OotP
book, the speculation is that JKR must have told WB that Aberforth
character is important in the future. It also seems that WB will cut
off Mundungus  character from the movie.
I think that Aberforth has the real Horcruxe, based on HBP Chapter
Twelve´s - Silver and Opals - incident with Harry and Mundungus
outside the Three Broomsticks. I think Aberforth took the Horcruxe
from Mundungus´s stolen Black family heirlooms, assuming  that RAB is
Regulus Black and that the locket that they couldn't open in OoTp is
the real  Horcruxe.  Is my opinion that WB will twist the plot to keep
that important fact , including Aberforth earlier that expected, but
also cutting Mundungus from the movies. What do you think? 

Sionwitch