@Daouda - The question is now better (respondents know the product which the question concerns), so far so good. Now, it still needs a bit of tweaking to become a "proper" prediction question. (Also, leave out the "do you think" bit for this.) The question should be very specific on what difference you want people to forecast. I am trying to guess what you mean and suggest to reformulate as follows: "How will the new Hugo Boss fragrance be different to the old version?". You'd then need to list the main differences as answer options. Respondents can then trade the answer options they think is the one.

@ Daouda - I could be the supporter for this but some information is still missing to nmake it a clear prediction question: for instance which (old / new) product is the prediction question about?