Here is a video of Boneta reprising the role of El Sol de Mexico, going by this video it seems season 2 will feature 2 timelines; one with Luismi still in the 90's and the other an older/more mature LuisMi. Netflix says it's coming this year, does not specify the month tho.
Source: https://www.youtube.com/watch?v=JCILLJjVdl8&feature=emb_title