Morning Lisa - nothing as yet. The wait time would be several months so if there's an urgency they would also need to request expedition after it has been submitted - Request an expedite - GOV.UK
Once processing starts there will also be a time lag whilst the registration requirements are met and checks made as appropriate - see PG 4 for guidance on the process Adverse possession of registered land (PG4) - GOV.UK
The wait time, even with expedition, is likely to be several weeks still