Drake and producer Noah '40' Shebib are currently using the late star's vocals for a new album expected to be out by the end of 2012.
The pair recently claimed that they were planning to "pull in some classic people" for the project, which was expected to include Aaliyah's close friends and collaborators Timbaland and Missy Elliot.
However, a spokesperson has now confirmed that the pair will not be involved in the project and have yet to be approached.
"Although Missy and Timbaland always strive to keep the memory of their close friend alive, we have not been contacted about the project nor are there any plans at this time to participate," Elliott's manager Mona Scott-Young told Billboard.
"We've seen the reports surfacing that they have been confirmed to participate but that is not the case.
"Both Missy and Timbaland are very sensitive to the loss still being felt by the family so we wanted to clear up any misinformation being circulated."
Missy Elliot added: "Tim and I carry Aaliyah with us every day, like so many of the people who love her. She will always live in our hearts.
"We have nothing but love and respect for her memory and for her loved ones left behind still grieving her loss. They are always in our prayers."
Drake recently unveiled the project's lead track 'Enough Said' online and insisted that fans should be excited for a new Aaliyah album.
Listen to Aaliyah's 'Enough Said' below: