ok Omega supreme... unicron... they are all big, and they had a little problem with the computer when devastator was built so now they have experience how to handle massive robots, so by now they have developed some technical tricks to make sure the audience will see a massive robot right, so i think its all possible, the TB's external hardrives are getting cheaper by the year so they could store finished robot parts on those harddrives and maybe blend them together on one big monster super computer and animate it further maybe, scaleing it to the right fit, what ever... i think its all possible...