You're suggesting a pack made up of, say, (once the new sculpts are out) Wasps, Stingers, Locusts, and... er, something else along those lines?
Oh great Ghu yes. Remember the days where weight ratios used to be 30% light, 40% medium, 20% heavy, 10% assault? An average company should then be 3-4 light, 4-5 medium, 2-3 heavy and 1-2 assault. As it is, I end up with 1-2 light, 4-5 medium, 4-5 heavy and 2-3 assaults when basing off the plastics for my company builds. I've been lucky enough to have enough 3rd Ed plastics to bulk up my Bug Mech ratios, but otherwise I end up using my hobby budget to bulk up the low end usually.
Admittedly, in classic 1x2 map play there's not much point fielding the average light 'Mech unless it's a 35-tonner. But
a) I'm one of those weird people who builds units for in-universe flavour, and
b) Alpha Strike suddenly gives lights a reason to be played again.
All IMHO, of course; and like I keep saying, the ease of reposing & modding plastics is (and I use this after consideration) divine!
What I don't want to see is a "reprint" of the old FASA lance packs - Wasp, Stinger, Phoenix Hawk & Rifleman. I'd cope with Stinger, Wasp, Locust & Phoenix Hawk, but yes getting a Valkyrie back out there would be wonderful. I think we can let the Ostscout stay a specialised unit in metal ;)