EdLoach
This website suggests the go ahead to do the work on this (Bluehouse) crossing was granted (in June 2022). https://www.networkrail.co.uk/running-the-railway/our-routes/anglia/improving-the-railway-in-anglia/anglia-level-crossing-proposals/essex-havering-and-hertfordshire-level-crossing-reduction-order/ See also https://www.networkrail.co.uk/running-the-railway/our-routes/anglia/improving-the-railway-in-anglia/anglia-level-crossing-proposals/ which includes "For those level crossings which require a new alternative route to be constructed before being closed, we will work with landowners and local County Councils to agree the final steps in the design process before construction begins." (so diversion and closure likely to still be pending)