The practice was first involved in the £75 million scheme more than a year ago, but the earlier proposals were thrown out by the government because of 'heritage and design issues'.
The new scheme would operate in phases, rather than as the single planning application that was blocked previously, and will preserve the Marine Lake, a site of particular importance to local heritage groups.
Phase one of the project, the renovation of the Floral Pavilion Theatre, is under way and Neptune Developments, the scheme's developer, is looking toward phase two of the project.
The original proposal for a block of 143 flats is understood to have been replaced by a 60-room hotel, while the supermarket has been made smaller and plans for a petrol station ditched.
The scheme also aims to provide the area with a swimming pool, bars, cafes, restaurants and a cinema.
Rob Mason, development director at Neptune Developments, said: 'We have consulted on our proposals and have listened to people's views.
'Taking into account those views, as well as the Secretary of State's comments, has resulted in these amended plans, which we hope to submit to Wirral Council shortly.'