Paraphrase this paragraph:
Furthermore, the possible introduction by Attanasio of a new application in accordance with the amended Italian legislation could meet with as yet unidentifiable obstacles, which render uncertain the protection of the substantive right invoked in the main proceedings.
It also submits that the very fact that Attanasio could submit a fresh application for authorisation under the amended Italian legislation could encounter obstacles that previously were unknown, thereby making it difficult to safeguard the material law relied on by the applicant in the main action.