Could hydrophones and ASDIC mature without the war?

How would anti-submarine technologies such as hydrophones and ASDIC progress if war waited until 1920?

Potentially, because research was already underway and historically produced some form of system by 1918; readiness by 1920 remains a possibility.

Royal Navy work on underwater detection began around 1914. Historically, it came under the Board of Invention and Research in 1916, with some form of system in service by 1918. That research makes an operational or nearly operational system by 1920 plausible even without a war in 1914. The projected readiness remains uncertain.