According to
SCMP, reopening is confirmed.
Chief Executive Lee announced the city would fully reopen its borders with mainland China from Monday with all checkpoints to resume operations, including those at Lo Wu and Heung Yuen Wai.(...)The Lo Wu crossing will open from 6.30am to midnight, Heung Yuen Wai-Liantang from 7am to 10pm while the Lok Ma Chau checkpoint will be operational 24 hours. Sha Tau Kok crossing, limited to cargo transport, will open from 7am to 10pm.
They seem to confirm the renovation work, too:
Tang also reminded members of the public to reserve more time if they opted for the Lo Wu crossing, as there was renovation work on the mainland side.