As I recall, just after Spencer died is when the BSAA showed up and had a massive brawl with Wesker. In the end you know, Jill and Wesker are out of the picture (temporarily), and I'm sure Chris was less concerned with Spencer - but nobody knows. They didn't really explain what happened. What if Spencer isn't really dead, and he mutates into something amazing because Wesker killed him? Haha, highly unlikely, but that would be interesting. I just want to know what comes next in the story.