I doubt they're going to that much effort to push this. But
going through the event there are a lot of people saying they're going who would have to fly to the UK to attend or who would find themselves very unwelcome due to their skin colours if they did show up.
I'm not suggesting that because they've got more than 2k interested or going, all of those people will show up. But if they've got that much interest in the event then it shows they will probably have larger numbers than on any of their protests before. Plus Tommy Robinson is plugging the event:
From other tweets I've seen it looks like Robinson is mobilising the
old EDL security crew/leadership to go with him. I've also seen a large number of far-right activists on social media saying they're planning on attending. So we should be assuming the far-right numbers for Saturday are going to be big. Definitely in the hundreds, possibly in the thousands. I will be shocked if this isn't the largest far-right mobilisation in London since the EDL in Tower Hamlets.
I will also be surprised if they don't fail to build a coherent movement off the back of this, like post-Lee Rigby, I can't see the bounce lasting. But who knows?