[QuarianRex]

I think that if we actually want to get any of this accepted by MM then we should try to stick with the 'change as little as possible' idea. That means leaving talismans and quantum reactors with their original abilities. The chances of MM effectively removing them from the game are pretty close to nil. Besides, they are not really unbalancing (well not the QR at least). The QR is really just a time saver. You can either equip every ship in your fleet with a supply pod and individually activate them every turn (to be repaited by the fleet shipyard), or you can equip those ships with QR's and save yourself a headache.

As far as the unbalancing supremacy of the talisman is concerned, that (and effective countermeasures) has been discussed in other threads and is interesting considering that it is the only "weapon" in the religious racial tech.

In short, the abilities should stay (cause I'm sure that they aren't going anywhere). We already have sensors and supply storage, we don't need super sensors (that the AI cannot propperly take advantage of) or big fat supply tanks. If you wqant to balance them make them harder to get, not impossible to use. Increase the research cost so that their acquisition requires a significant investment.

By how much? I'm not sure yet.