The two versions of TPM-3 have been updated. The front-line TPM-3 Omega 2 includes a new coating to aid stealth and signature management. The missile also has a new mission computer that is faster and slightly smaller. This will enable the fitting of extra ECM aids.
The second-line TPM-3 Sigma 2 also includes this new computer and ECM. Both missiles have now entered production.
NS also announced that it's next generation TPM-4, a clean sheet redesign, has been delayed until 2123. This is due to new technologies which NS wish to employ in the TPM-4 not being quite ready yet.