There has been the thought offered, that the Governing Body will some how revise the Memorial but I don't think that its necessary, nor actually advisable for the following reasons.
While we are reminded every year, that one day (after the rapture) the need for the Memorial will end, until that time it does hold a special place in the hearts and minds of the Brotherhood, that could be said to be one of the few Biblical things we do. But on a practical point, the fact that the option (and partaking of the bread and wine) for the heavenly hope, does help the many newer ones from Christendom accept the Faith easier. And its well understood and tolerated by local Elders (and by extension the Society) that many do actually partake do to an 'spiritual enthusiasm' that can dissipate over time.
Also, every religion (even the well established mainstream Christian religions) have a bit of magic or mysticism in their practical worship. And if you have ever been to an Orthodox Mass then you will understand the importance of the trappings around it are, let alone the Transubstantiation of Christ blood and flesh, in the minds of its followers.
Thus it could be said that religious particularities can be well tolerated and valued. And so I feel that the Memorial can be ours, considering that its not really an onerous occasion to attend.
Plus its one one few occasions, were Jesus cracks a decent mention.