Sheesh, how do you even TRY to predict this split?
I think the only safe bet is Origen is going to be tough to beat. They're still just as strong as ever, and PoE is arguably an upgrade(tough to say, Peke and PoE are both really good)
UoL looks good as well. In general, most roles got upgraded, but it'll be strange to have them without their trademark crazy playstyle.
Vitality is going to be hit or miss. The players on the roster are all fairweather players, sometime stars, etc. The type who are awesome when they show up, but all too often don't. Kasing could be the key here, as he's proven a very good enabler for those types of players.
Splyce are essentially unknowns... their players have a lot to prove if they want to stand tall in the LCS.
Roccat's lineup is not looking good. There are a few places where good things could happen, and there's always the potential for a surprise... but I'm not hopeful here.
H2K is taking a gamble on the self-proclaimed best adc by far. I dunno, I think his 'drive for perfection' as he calls it is going to drive another team onto the rocks... but maybe not.
Giants have made minor upgrades. Realistically, they weren't a BAD team before, so minor upgrades may be all that are necessary. I doubt they'll be top 3, but they may be if synergy is there.
G2 has potential. Emperor looked good in the few games we saw him in the NALCS, and Kikis is always fun to watch. The rest are relative unknowns, but for the EULCS that's not that uncommon. We'll see how it goes.
FNatic blew up. They still have their star ADC and Mid, but without a 'general' to lead them, I'm concerned for how well they do. But their coach worked miracles last year, maybe he'll do it again.
Elements fell apart apparently, but I can't say that the new roster is any worse than the last. It's mostly less well known players, so it's hard to call how they'll do. Like Splyce, they have a lot to prove. Rallez is a decent ADC with someone to protect him, but it takes a lot of synergy to work with that type of player. We'll have to see if they have it.