Activision fires lead developer at Infinity Ward

Story at Kotaku

A lead developer at Infinity Ward, Jason West, has been fired by Activision for insubordination and breaches of contract. Vince Zampella, another lead dev, was also present in meetings with management and his status with the company is currently unknown. As respected as West is, I don't think it's a stretch to expect other IW developers to jump ship with them. I have two main questions at the moment:

1. Where will West and whoever follows him go? IW devs (then under 2015, Inc.) left EA in late 2003 for Activision in order to develop non-Medal of Honor titles. After the success of the Call of Duty series, I'd be willing to bet that EA is tripping over itself trying to recruit the IW boys back on their team.

2. What will this mean for future installments of the Call of Duty series? The brand is one of the strongest in the industry and they know it - note that Activision's new FPS Singularity, developed by Raven (exclusive contract with Activision), was delayed to June 2010 due to strong demand for CoD: MW2 despite solid hype and positive previews. Clearly they are maintaining focus on existing brand awareness and not so much on riskier new ventures. I wonder which way they will go to keep the series on top: keep CoD mainly at IW with presumably weaker developers, or shift more responsibility on to Treyarch (lesser dev of MW, known to be working on CoD 7)?