The Hammers are hoping to move into the stadium following the 2012 London Olympics and have presented a joint plan along with Newham council to take over games’ centre-piece.
Warner told BBC Radio Five Live, “I'm very excited about what it will be as a venue and there are some very interesting proposals coming forward.
"West Ham have already put their hat in the ring already, they haven't formerly submitted their letter yet, but they are clearly very interested and working hard.
"I've spent a lot of time with them I think that it is going to be a very credible proposal and certainly one we could work with, there may well be others."