Veigar changes incoming will ruin him!
According to these PBE notes (http://www.surrenderat20.net/2015/02/213-pbe-update.html), there are sustanial changes incoming for Veigar that I know would utterly ruin him. Veigar already got slapped with the loss of DFG, but he was not screwed totally. With the incoming changes hes likely to become useless.
Veigar is the classic mage in games, he seeks ultimate power, and when he unleashes it destroys things. The weaknesses he posess is most of his damage is from his ult and once he fires his ult hes very vulnerable. He is also not mobile, at all; which in the current meta is a death sentence to him. His 1 counter to mobility is the fact he can reliably land all his skills if he combos properly.
To summarize, the PBE changes:
-will turn his Q into a line skillshot than can hit two targets, has about 200 units extra range, and has longer cd. It also seems we don't get an extra 1/2/3/4/5 AP from killing an enemy champion anymore. This will basically turn his reliable Q into a very inconsistent one with the "dash" meta at the present. It has the potental to speed up his AP increases but the loss of the old passive coupled with the fact his Q not guaranteed anymore makes it a nerf.
-his E is given at 0.75 delay, making it easier to dodge his only CC. this will make his E as hard to land as Karthus' Q and we know how often Karthus gets played these days...
-Finally his ult got a nerf to its AP ratio, doing 100% AP instead of 120%, in exchange for lower cds, and mana cost. Basically our signature skill is nerfed not to awful levels but if you consider that we no longer have DFG, this will effectively kill Veigar.
In closing, do I have alternatives to these? no but, these changes are nerfs, not buffs to Veigar. He needs something comparable to DFG to be back on top this PBE notes will basically destroy him. He is one of my old favorites and these patch notes, make me cry because it proves yet again that Riot does not care about anyone except ADCs (Marksman) and will nerf anyone but ADCs if they pose a threat to ADCs. Veigar has great zoning which makes dash champions (Lucian, Caitlyn, Graves, Corki, Kalista, Tristana) have a hard time dashing all over the place. These changes would allow them to more easily evade good old CC.