Still the thunderforged rubbish won't help 25s, not the way they're implementing it anyway. It'll lead to loot drama, reluctance to be benched, wasted loot and all that jazz. It should not go in the way it is proposed right now... if it was a token that upgraded any item to thunderforged then it would possibly be alright, but even so it won't really help 25s in any way.
Oddly, it seems the thunderforged loot will increase the organization burden on 25 mans as their bench rotation becomes more complex in light of a "chance" at slightly better gear. I wonder if it will have an overall negative , net zero, or positive effect the design is going for.
Net zero at best, negative at worst.
I'll give you a personal "for instance": At this point, I'm pretty well geared from the bosses we've been killing. Thus I try and sit for non-progression bosses I need nothing from in order to give others playing time and chances at drops. However, because the next patch has Thunderforged gear, I'll be less willing to sit out. Now, I probably won't care too much about, say, Thunderforged boots or bracers or a neck or maybe even rings. But my offpiece? Weapons? Trinkets? Fug it, I'm going to be wanting in for those bosses every single time to try and get Thunderforged.
People will be more reluctant to take the "normal" versions of items because smart loot distribution dictates that you try to gear everyone at more or less the same pace. This means if you get the Normal version of a piece of gear, you're probably not going to get a Normal Thunderforged piece. Likewise, if you get a Normal Thunderforged piece, you're probably last for Heroic and etc for Heroic Thunderforged. Loot headaches like these are the type of things Blizzard should be trying to lessen
for 25 man guilds, not exacerbate.
By the way, that's why I support the coin system. It lessens gearing headaches because if someone wins items via coins, the guild gears faster and doesn't need as many coveted dropped items. Thunderforged is going to give back the gearing headaches with interest.