I see what you did there.
I’m so tempted to make this image now…unfortunately I’m going on holiday in 8 hours and am in dire need of sleep. 
IMO McG Ruined the franchise with Salvation.
If audiences had been left with “The Sarah Connor Chronicles” I think the Terminator franchise would’ve held together… BUT NOOOO, we couldn’t just leave it at the third movie and be done with it.
Back on topic, If an image of such a combination of geek fandome were to be done, I’d say it should be the Comic-con symbol.
I do have one addition, an Autobot symbol on the blade end of the lightsaber, and a Decepticon symbol on the base of the hilt.
Wah wah! MY FRANCHISE! :’(:’( Get over it, Salvation was a fun movie, and Terminator 2 was really corny and almost embarrassing at times if you think about it.
Also, I think the shirt idea is too damn much, and I’m not somebody who should ever have to say that.
This T-shirt would be great. Then I would know who to punch or shout abuse at.