"hazard", "informed guess", "crystal ball".
With respect this is a naive post; you might as well ask for next week's winning lottery numbers.
By 'hot' it sounds as though you are looking for some 'get rich quick' tip.
You are lucky you haven't been spammed by numerous agents trying to flog you the latest "luxury, can't lose, off-plan, concrete box".
Investment in property, as with any investment, is about medium to long term sustainable growth. You should not be looking to make an overnight fortune, simply to beat the returns from a high interest deposit account. Putting money into any asset short term is more akin to gambling than investing.
The papers & magazines are awash with innumerable new developments around the world; stop & think - is there a resale market ?. At the end of the 'guaranteed' rental period, what are the realistic chances of me and hundreds of other 'investors' covering our costs, never mind making a profit ?.
How many people do you know planning a self catering holiday in, say, Bulgaria, Turkey, Cape Verde, Morocco, Montenegro etc. ?. Not many, I suspect, so just who is going to be renting all these identikit units ?.
In my opinion (and opinions are like noses - pick your own) the current credit crunch has injected a large dose of reality into the market. Is owning a featureless flat near the Red Sea really such an attractive proposition ?. Doesn't matter how glossy the brochure, do your own research, then do some more.
Never, ever invest in property without visiting the location and looking at the reality.