If you have standing warrant of arrest, the least that would happen is that the officer in charge to enforce such warrant have to perform that duty, which means you can be arrested. Besides, with that warrant, its enforceability shall be anywhere in the Philippines. Accordingly, no such restriction is provided for warrants of arrest. Parenthetically, in certain states within the American jurisdiction, there were limitations of the time wherein a warrant of arrest could be enforced. But in our jurisdiction, no period is provided for the enforceability of warrants of arrest, and although within ten days from the delivery of the warrant of arrest for execution a return thereon must be made to the issuing judge, 19 said warrant does not become functus officio ( an officer or agency whose mandate has expired either because of the arrival of an expiry date or because an agency has accomplished the purpose for which it was created.) but is enforceable indefinitely until the same is enforced or recalled.
If what you meant about the negotiation is best describe as compromise agreement, then that would be a positive indication that your case will be settled amicably long before you can even fly back abroad.
For better understanding on this matter, it would be best if you consult your case to a lawyer so that you will know how to handle the matter which caused you so much trouble.