We have gone from considering as a solution to the conflict[s] - one state, two states, three states, and even four states. And now we are back down to one state.
MK Zevulun Calfa (habayit Hayehudi) is working on proposing a law promoting a One State Solution.
Calfa's One State solution law would give complete equal rights to everybody living within the borders of Israel between the Jordan River and the Mediterranean Sea. Calfa's law would give equal voting rights for Knesset, equal investment in infrastructure, equal investment in developing towns and villages.. The complaint of Israel being an apartheid state or racist, would be dropped, because all residents would become equal citizens with equal rights.
Calfa is not worried about the demographic issue that is regularly raised, especially in relation to the idea of making all the Palestinians into Israeli citizens. Calfa says that the Jews will remain a majority in the State of Israel.
source: Israel Hayom
Unfortunately Calfa does not explain how that is so and how the demographics claim is either wrong or how it will be dealt with. I don't know if his say so is enough to go on. It sound smore like the classic Israeli "yehiye bseder" - it will be ok. Sometimes that works out, and sometimes it doesn't.