NFL coaches will vote on a proposed alternative to the onside kick on Thursday, according to The MMQB's Albert Breer.
The plan, which was proposed by the Eagles, would replace onside kicks with a 4th-and-15 from a team's own 25-yard line. If a team secures a first down following the 4th-and-15, it would retain possession, per Philadelphia's proposal.
The potential alteration does come with a set of caveats. The 4th-and-15 option can only be used in regulation and it will count as an untimed down, per Breer. Standard rules would apply on the play, with all normal penalties–such as holding and pass interference– enforced.