During a press tour of the facility that he oversees, Geoff Martin commented on Sprint's alleged switch to LTE stating that there was a “high likelihood” of the technology being adopted by the carrier “in one flavor or another” and that “announcements will be made soon.” Earlier this year, the nation's third largest carrier declared that by the middle of 2011, a final decision will be made, and it looks like the transition is probably going to be confirmed once the deadline gets reached.
If Sprint decides to switch to LTE for its 4G pipelines, the technology looks like a suitable candidate for the carrier's 14MHz of spectrum within the 800 MHz range. That bandwidth is currently used for iDEN-based Push-To-Talk services, which will be carried over to Sprint's CDMA network over time. "Operating three separate networks [CDMA, iDEN, and WiMAX] is hugely expensive," Martin said, but once the carrier network gets restructured during the shift, the number of Sprint's base wireless stations will possibly drop by up to 40% reducing network running costs by a great amount.
source: Total Telecom via Sprint Users