There was talk of a film several years ago but clearly has come to nothing. Apparently Disney hold the rights now.
My dad worked for the BBC at the time and was part of the crew on both series. I had read and loved the original three books a few years before. When he showed me an early tape of the last episodes with red tripods having guns, I pointed out that they would make the part of the final book where humans launch an attack in hot air balloons pretty difficult. These things are obvious to a ten year old. Dad mentioned this to the production team who, I was told, hadn't thought about that. Eventually it was decided that, had it not been axed before the final series, the humans would discover that the guns were set so that they could not fire above horizontal.
A remake would be great. The tripods' claws could be depicted as the terrifying weapons they were in the book, rather than the slow hydraulic lifts they actually were. The depiction of the Masters was also hugely compromised by practical issues in the second series, although I remember the city itself as fantastic for the time. In truth, I think the series was far slower than the book, possibly padded out to fill the required slot in the schedules. A two hour film might be spot on.