Read his statement more carefully - he is only implying that the name will remain as Israel. The Arabs of his extreme ilk, of which there are many, believe that they will conquer the rest of "historic Palestine" internally via increased birth rates and subversion. It's the Khartoum plan all over again.
Western-backed Syrian rebels say kill foreign Islamic State (Reuters)
from the article: Hamas denies Meshal said group would consider recognizing Israel