Optimus in TF4

So, what do you all think will happen with Optimus and his right arm that was detached in battle with Sentinel Prime? Will it be repaired and reattached? Does he switch alt modes? If so, to what?
SEIBERTRON - Your Planet For Everything Transformers
https://www.seibertron.com/energonpub/
https://www.seibertron.com/energonpub/viewtopic.php?f=44&t=86786
Capt.Failure wrote:Considering Starscream lost an arm in RotF and was back in fighting shape a few scenes later I don't think it'll be much of an issue for him.
TulioDude wrote:Capt.Failure wrote:Considering Starscream lost an arm in RotF and was back in fighting shape a few scenes later I don't think it'll be much of an issue for him.
I agree.
About Megatron,i didn't expect him to keep the face damage he got in ROTF.
Rushie wrote:I'm sure Optimus will return with the same alt mode and both arms without much of an explanation. Every film skips a few years and the audience will assume he got repaired by Ratchet. Remember Bumblebee's missing legs in film 1 and no mention of their repair in RotF.
It'd be interesting if they worked a newly designed arm into the fourth film though. It could homage Big Convoy and have the ability to transform into a vicious weapon like RotF Megatron or Cybertron Savage Claw mode.