[Marcello]

"Starts to make you wonder if Tanks are on their way out."

For a start the sort of high intensity, high tech conflicts where this could become an issue aren't going to happen for many years. In the meantime tanks are proving themselves useful in places like Afghanistan or Iraq. No LOSAT touting OPFOR there.
Beyond that it is hard to tell.
Personally I am not particularly fond of the information dominance concept the FCS is based upon, where thin armored cars wipe out the enemy armor via PGM barrages from safe standoff ranges, but who knows?
In the timeframe where high intensity, high tech wars may become again likely robotics may be already sufficiently developed to make unmanned ground combat vehicles mainstream. If this was the case might the need for armor protection to keep human losses as low as possible might be a less pressing issue, resulting in UGCVs with thinner armor (a bit like in the 60's when steel armor was considered hopeless against HEAT, giving birth to designs like the Leopard 1)? As I said it is hard to tell.