Re-branded Xceltoken is now Xceltoken plus now they have new token XLAB, The token swap was automatic, The new (XLAB) XcelToken Plus will be in the same wallet where you are holding your Old (XCEL) Tokens. Team are working to upgrading the payment system for XLAB, soon we will be able to use XLAB.
New token is already listed and trading in many exchanges including BITKER, LATOKEN, Mercatox, P2PB2B, HOTBIT and more but price & volume is very low. After CoinMarketCap listing i think prices may increase. Even though the project does not seem very solid to me.