Who would give way remained unclear, however, as both candidates insisted they would not slide down to vice president.
In a brief interview at the ancestral home of Sen. Luisa Ejercito here, Poe said he was waiting for Lacsons text message for the exact time and location of the one-on-one meeting next week.
"Im optimistic," Poe said of the upcoming unity talks.
Asked whether unifying the opposition is necessary, he said: "Kailangan (Its necessary)."
Sources in the KNP said the meeting is likely to take place in Manila on Monday or Tuesday at the latest.
Poe said that in their last meeting two weeks ago, both sides agreed to exert more effort in unifying the opposition. The two reportedly met on Easter Sunday but have been tightlipped on what transpired at the meeting.
Asked who would give way, Poe said: "Not give way; I guess the right word is unification."
Sources said both sides aim to finalize talks by the end of the month and overturn President Arroyos lead.
The President led Poe by three percentage points in the latest Pulse Asia survey taken March 27 to April 4.
"Theres still time," a source said. "Because of media and communication, people all over the country will immediately know of the unification."
Poe dismissed reports that he was ready to slide down to vice president in exchange for P250 million, saying that the rumors came from groups trying to sow intrigue.
Meanwhile, Lacson, who used to say that he was no longer enthusiastic about forging a united front with Poe, is reportedly upbeat about the renewed talks and the possibility of defeating Mrs. Arroyo in the May polls.
"We might meet on Monday in Manila if our respective schedules permit," Lacson told journalists covering his campaign sortie in Laoag City yesterday.
He denied though that the unification is already a done deal and that he and Poe will be making an announcement in the next two weeks.
"There is no done deal yet. There is no truth (to) the report published in The STAR," Lacson said.
He maintained that he will not slide down to vice president, citing that the "very warm" reception he has been getting from the people in his campaign sorties made him even more determined to pursue his presidential bid.
"My mind is set to go for it all the way. He (Poe) may be thinking the same thing. It could be the main hitch," Lacson said.
His campaign spokesman and political strategists, Lito Banayo, remains undaunted, saying that unifying the opposition is still possible for as long as Poe and his handlers will keep an open mind on the question of who will give way.
"We would like dearly to have unification, but we believe that Senator Lacson should be the united oppositions presidential candidate because of his track record and competence," Banayo said.
Lacson sees other possible hitches in his talks with Poe, though.
"Si Angara problema namin iyan sa LDP, ngayon problema nila sa KNP (Angara was our problem in the LDP. Now he is their problem in the KNP)," he said, referring to Sen. Edgardo Angara, president of the Laban ng Demokratikong Pilipino, to which Lacson and his lone senatorial candidate House Minority Leader Carlos Padilla, belong.
Angara, however, supported Poes candidacy over Lacsons and organized the KNP as a political vehicle of the actors presidential bid.
Lacson added that there are persons in Poes camp that are meddling in the decision-making process.
Meanwhile, rumors are rife that the influential Iglesia ni Kristo (INC) is brokering unification talks between the two opposition candidates and that Lacson will be the standard-bearer.
Lacson denied that the INC is involved in any way. "There is no need for any person or group to mediate because our lines of communication are open," he said.
In the meantime, Lacson backtracked on talks with the camp of presidential candidate Raul Roco for a possible merger.
On Thursday, he revealed that Rocos camp, through former Cebu governor Lito Osmeña, asked for P100 million in exchange for the possible unification of forces. He said he and Padilla ditched the proposal and were no longer interested in negotiating with Rocos Alyansa ng Pag-asa.
Osmeña, however, earlier said that it was the former PNP chiefs group that approached the Roco camp for a possible merger. With Jose Rodel Clapano