Will Rey and Kylo GL be needed for future GLs?

They said recently it is very difficult to create new chars and now they present GL needing all these old chars but with high relics...this is an easy way for cg to grab our money without much effort. I think every new GL will need all these old useless chars on relic 4-7...including farmboy Luke, the gamorian guard, tusken and so on...the same with the ships...and all is getting more ridiculous as farmboy luke r7 still can’t beat bb8 g11....like it was in the movies hehe...