RIYADH/JERUSALEM   -   Hamas is considering a new framework proposed by Egypt that calls for the group to release as many as 33 hostages kidnapped from Israel in exchange for a pause in hostilities in Gaza, an Israeli source familiar with the negotiations and a foreign diplomatic source told CNN.  Israeli Prime Minister Benjamin Netanyahu warned on Tuesday, however, that Israel would launch an operation in Rafah “with or without a deal.” The latest proposal, which Israel helped craft but has not fully agreed to, is laid out in two phases, the first of which calls for 20 to 33 hostages to be released over several weeks in exchange for the pause and the release of Palestinian prisoners. The second phase is what sources described as the “restoration of sustainable calm,” during which the remaining hostages, captive Israeli soldiers and the bodies of hostages would be exchanged for more Palestinian prisoners.  The diplomatic source familiar with the talks said the reference to sustainable calm was “a way to agree to a permanent ceasefire without calling it that.” At the same time, US Secretary of State Antony Blinken said he believes a deal is “achievable because the Israelis put a strong proposal on the table.” The top diplomat, speaking to the press at a humanitarian aid site in Jordan, said Washington wants to see the agreement come together “in the coming days.” After months of deadlock, agreement from both sides would be a major step toward ending the war. But a failure to agree could deepen Israel’s presence in Gaza – if no deal is made, Israel is likely to launch a large-scale ground invasion into the southern Gaza city of Rafah, where more than 1 million Palestinians are sheltering.