The 3rd generation Trans-Phasic Missile (or TPM-3) has completed its final round of testing and has been cleared for production. The DDS will begin this in Q1 2115 once engineering and training needs have been met and for the main TPM-2 production line to be modified. The DDS expected to have phased in TPM-3 production to all of its 5 production lines by 2116.
TPM-3 has a new triple-warhead option (though single warheads will be carried normally) and greatly improved stealth features including a signal management suite and a new low-emission ion engine. TPM-3 is also smaller (82% of the size of a TPM-2) though will be compatible with existing launchers. Dedicated launchers will be able to take advantage of the smaller size to increase weapon load in future years.
The DDS does not intend withdrawing TPM-2s which will continue software and component updates until 2119 when natural wastage is likely to have reduced stocks to a minimum. The two types will continue in service side by side (TPM-1 is still in service in any case though mostly in Canister TPM form).