As far as I know, the €150 million is only how much the government has earmarked for the project. It doesn't mean the stadium would stop at this mark, it might be co-funded by private partners building the secondary uses.Only € 150 million for such a stadium? Sounds hard to believe. The whole complex looks impressive though, but that will cost even a lot more money.
As you can see it's just a poor render:Dreadful. The gap at that end is ludicrous. No excuse for it.