really these are fake for many reasons for one thing they cannot spoil things this quickly the only things at this point are fakes or say a single card like in return to ravnica and also why would they have a artifact based dragon in a standerd that does not contain much artifacts and i am not so sure about this one but enter the infinate says draw cards equal to your library when i am pretty sure from what i have seen is they would just word it draw your library it means the same thing and is simpler plus aurelia seems a bit too cheap for that effect usually it is five mana to do that effect for one turn but six to do it each turn even the turn you play it also it think boros would not have a guildleader with less power than toughness
also the dragons are returning the sets name is dragons maze and there are three dragons in return to ravnica but i think utvara hellkite stands for a lot of dragons. why would they bring in a card like utvara hellkite unless there was going to be a dragon theme.
first of all nicol bolas was confirmed not to be in return to ravnica. second it is so obvious check out this card's flavor text http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=277992 a labrynth without walls. also niv mizzet is not going to be the bad guy has anybody noticed how on the back of the flavor cards you get in pack instead of tokens says "niv - mizzet, the dragon guildmaster of the izzet league, has returned from his self-imposed exile. and he has a plan. armed with new knowledge of ravnica's very nature, the firemind has set his guild on a new project." the very nature of ravnica. also here is another flavor text that says they are doing investigations http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=290527.
jace is not emotionless it is pointed out by wizerds of the coast that jace has a hard time deciding between good and evil he is a very complicated character so i think it is quite possible that he is a blue red planeswalker as to exspress that plus they said in todays article that jace is not joining any guild and trying to get away from that has happened to him as a planeswalker and in addition he is investigating niv mizzets plans
richard garfield, god of the multiverse 2uuuu
+1: draw a card.
0: the next spell you cast this turn, you cast as any other spell of your choice with the same mana cost instead.
-3: the next spell one of your opponents cast, they cast as any other spell of your choice with the same mana cost.
3
i personally think that when we enter ravnica the guilds are gonna be in war again and then in gatecrash a planar gate is gonna be crashed open by some new big enemy (it cant be the phyrixians or the eldrazi, because it would be too soon to make mor of those) and the guilds will reinstate the guildpact to fend of the enemy and then i do not know (seeing scars of mirrodin makes me think they could do any side but i would hope the ravnicans)
that to.
a level 24 wizerd and a level 4 demon hunter
1: fullmetal alchamist
2: one piece
3: fairy tail
+1: draw a card.
0: the next spell you cast this turn, you cast as any other spell of your choice with the same mana cost instead.
-3: the next spell one of your opponents cast, they cast as any other spell of your choice with the same mana cost.
3
next, how about http://gatherer.wizards.com/Pages/Card/Details.aspx?multiverseid=265154 the link takes you to maelstrom wanderer