There is not much info to go on, being only one batch of releases so far.
This is what we have seen: These bundles gave out r5 of toons, regardless of actual requirements. Then you had to take, for example JTR up to r7.
One thing I am doing is taking requirement toons that I have at relics for other reasons up to the higher relic requirement rather than bringing up lower toons. For example, I had GAS at r7 for general use (he did his jobs fine at that level) but I took him to r8 for LV requirements, rather than work one of my other non relic requirements up (or a toon at less than r5 up).
I don't really expect that LV will be in any bundles any time soon, but I think just in general focussing one toon all the way up to higher requirements might be the way to go, rather than spreading across the board. That way you leave yourself open to the maximum benefit from a bundle arriving mid-farm.