Sadly no. When you make a new petition you have to get 5 people to sign it, during this period signatures are capped at 21, I currently have 3. They send you an email to forward to people, which is the exact text I posted, and that is the exact text of the petition. Once it has 5 signatures it goes into a queue to get approved, which can take a while, then the petition would be live as normal at:
https://petition.parliament.uk/petitions/550233 but as you can see, even that doesn't include the petition text while the petition is in this early stage. I completely agree with you that this process doesn't help you trust what you're signing, I have send this feedback to the Petitions Committee before and I have just sent it again.