Regarding M1A3 on StrategyPage.com

I have never been so reluctant with the military discussion and forum website Strategy Page (http://www.strategypage.com) until yesterday. Usually well informed and free of interpretation(although those conservative shirt advertisements had always annoyed me) this page has proved its objectiveness throughout the 5 years that I have been reading it. A forum is always the object of uninformed people and thus leading to misinterpretations and the previous mentioned 'unobjetciveness'. The article mentioned is M1-A3 Forever in Strategy Page:
(http://www.strategypage.com/htmw/htarm/articles/20070817.aspx)
First the fact that there are currently no plans to develop, enhance or even upgrade the models of the M1 series(with the exception of the TUSK and 2nd Gen FLIR standardization). Second M1 series will partially be redeployed and reorganized to 'complement' the FCS. Third, there have been a series of theories regarding the vulnerabilities of the armor located in the fan intake and the 'belly', which have been tossed due to the TUSK upgrade.
I find quite difficult that the US Army, with the Marines, made a proposal for an upgrade on the M1 series. This because of the size of the force approaching 9,000, the M1A1 HA and M1A1 upgrades almost complete and the fact that many units do use combined arms tactics in urbanized terrains to decrease the use and thus the vulnerability of these machines to the close fight. Also the extended use of the M2/M3 (in its varied versions but specially the M3A2 with ERA kits) has been lowering the amount of casualties between the 70 tons behemoths.
The US military is moving in the line of decentralization and combined arms way, so is highly unlike that a major upgrade to the M1 series should be taken place due to the current strategies and analysis made, although at least for the next twenty to thirty years will be still seeing among the battlefields occupied by US armed forces.