If he were to do any today, they'd have to be a lot more impressive.
Why?
You seem to be set on the idea that the message was the miracle, "Hey Rocky, wanna see me pull a Rabbit out of a hat?" or "Here. hold my beer..."
Granted, there are some such examples in the Bible but few if any related to Jesus. Most of the show miracles are OT stuff, Moses showing who could conjure up the bigger boa for example.
Stop and look at the material you yourself have mentioned in the thread.
Jesus puts on a lecture series. The staff come to him and say, "Boss, these folk came a long way to hear you, you talked all day, now it is going to be too late for them to get home. Can we feed them?"
The staff don't say, "Hey Boss, here is the storyboard, Crowd shows up, you take a couple fish and some day old bread and make bouillabaisse for 5000. That will make page one of the entertainment section."
For the most part, Jesus miracles are after the fact and NOT done to impress.
I think Jar's example of Thomas the Doubter is very aposite. Tom is a fairly sensible chap who thought that the idea of Jesus' resurrection was a load of old codswallop. But this doubt wasn't treated with the indifference that subsequent generations have had to deal with. Instead he was given pretty intimate, conclusive evidence of the miracle(in the terms of the day, anyway). To me this seems pretty unfair, because no-one get's that kind of service these days. Clearly, however, it doesn't bother modern Christians much because they're still Christian. I was wondering how they squared that particular circle.
Square what circle?
I'm a Christian. I am telling you that is the point of the story.
If, like Thomas, you do not believe, you not just have doubts, you just plain think the whole story is a bunch of old and cold codswallop, that's fine.
You are not expected to believe without proof at the same level of verification Thomas had.
Aslan is not a
Tame Lion