The reference technology for DEMO Helium Cooled Pebble Bed breeding blanket for the tritium extraction is based on tritium release in a He purge gas at 0.2 MPa, followed by a 2-stage tritium recovery process from the purge gas in the Tritium Extraction and Recovery system. The recovery process is based on adsorption of Q2O on reactive molecular sieve beds, while Q2 is trapped using cryogenic molecular sieve beds. Several risks have been identified with the reference technology for the system, like low reliability of BB system due to large pressure difference between the cooling system and the purge gas in TER, or large amount of LN2 consumption during the operation of the cryogenic beds operation. The development of the TER system architecture proposes replacement of the cryogenic beds with non-evaporable getter beds and the operation of the system at the same pressure as the BB cooling system, 8 MPa. By this development, the risks identified with the reference technology are mitigated or excluded.