Escha slit and AMAN vouchers

Hey there SE, can we have info as to whether or not at some point we can exchange our copper vouchers for escha slit? Being the only way atm is through limit points on top of the fact escha (both eventual zones) are over crowded (or someone mass aoe pulling). then it would be a nice additional option to have to farm slit, and maybe giving those who just want a certain amount for an event far more easier to obtain. As this also leaves camps open to those who still want to gain more slit.