In Transformers, will sparkplug and spike witwicky be essential to the story, or just make cameos?

Question

They're fun characters to bring back for fans of the series.

Answer 1

From what I gather, Spike (or "Sam," as he seems to be referred to in the reports) will be a central character in the proceedings. In fact, some fans worry that there'll be far too much human stuff going on and too little robot stuff.