According to this Guardian piece, based on a visit to SCEE in London, Eight Days is only now hitting full production.
Moving up from floor to floor, we see Eight Days – which is just ramping up to full production. To get an idea of the scale of development required on next-gen consoles, the team, currently numbering 63, will expand to about 80 with a further 40 or so outsourced workers. A small team is working on pre-production for the next iteration of The Getaway, in preparation for being joined by the bulk of the Eight Days team when the latter is completed.
"The idea is to have two pre-production teams and one production team, which flips onto whatever product, at that point of time, is ready to have that team working on it," says Eight Days senior producer Phil James.
The action game was announced in 2006, we believe. Might take a while, then.