"will have" does not necessarily mean that it will be done by someone else.it means you will have the results in the near future not immediately.

In this sentence, "will have" means that the results are expected to be ready at a time soon in the future. The structure "will have (something) ready" indicates that someone is in the process of preparing something, and it will be completed shortly. Here, it implies a promise or expectation that the results will be available soon. PS. question should be formulated: In this sentence, what does "will have" mean?