Well that's the end of Think Tank.
Was it any good? Well, not really. Parts of it, as I've said, were just silly. Such as having to ask a Tanker to help you when you know the answer. Two Tankers having to "argue their case" for their answer, when there's every chance the one that's got the wrong answer know it's wrong anyway. The silly hand gestures. The applause after every single correct answer (when a lot of the questions really aren't that difficult). And so on. Plus the general concept of having people on a panel whose general knowledge, on the average, was no better than the contestants.
Having said all that it did have a certain charm. By the end of the run I didn't think it was as bad as I did at the start. Having the same group of people on every day was probably a good thing. You got to know them, and how good (or in some cases, not so good) their knowledge was. That became part of the entertainment - to marvel at some of the things they didn't know, and the answers they'd come up with.
Will it come back? It might. The obvious question, if it does, is do they keep the same Think Tank, or bring a new lot in. You could bring in Tankers with better general knowledge, more quizzing type people. But I don't think it would work. It would just be a case, as somebody said above, of the contestant asking the Tanker the question and the Tanker, in most cases, just telling them the right answer. The essentially amateur element of the Think Tank would be lost.