Kent Somers is a highly regarded reporter who covers the Cardinals for azcentral.com, and he writes today in a rather declarative fashion that the Cardinals will pursue Kevin Kolb whenever they are able:
Whenever they are able, the Cardinals will pursue a trade for Eagles quarterback Kevin Kolb. Kolb had highs and lows last season, but if you are looking for reasons to be excited about him, check out this highlight video of his game against the Falcons. He completed 23 of 29 for 326 yards and three touchdowns against good defense.
A point-blank statement like that would indicate to me that Somers knows something concrete. Kolb-to-AZ is obviously what we already expect to occur, and everything is speculation until it actually happens, but it's always good to see a respected journalist put his name to something so emphatically.