In the distant(ish) future I'll be releasing Kingdom Asunder. I'm about halfway through the first draft and suspect it'll be the biggest book I've written so far. (I don't aim for word targets, but I'd guess 130,000-150,000 words is possible). When it's out I'll be releasing a free Regency Edition which will cover the half of the storyline that focuses on the Regent (the plot covers the civil war between him and the King).
This is good for a few reasons. A free book can tempt people into buying the rest, and Stephen Sweeney used to great effect in The Battle for the Solar System (you might very well think I got the idea from him, but I'm afraid I couldn't possibly comment). In addition there are some free book sites that list, er, free books, giving some zero cost publicity.
I've been considering making Bane of Souls and Journey to Altmortis into a mini-series, called Transfigura Tales. This would basically entail me calling Bane of Souls #1 in the series and Journey to Altmortis #2. That will make zero practical difference to the books, but will mean that people who have bought one and not the other will be notified by Amazon of the other's existence. I have mixed feelings about this. I did always intend them to be related but stand-alone, as Joe Abercrombie's Best Served Cold and Red Country are. On the other hand, others have suggested the two are close enough that this would be a change that's legitimate.
I haven't written, or even started, really, the second book telling of Sir Edric's misadventures, but when I do it'll be a prime candidate for this seriesification. Sir Edric's Temple shall be #1, and Sir Edric's Treasure (working title) #2, and so on.
I do plan on doing a Twitter giveaway. Not quite sure how to do it. I might run it for 3-5 days, and have everyone who RTs an article I'll write here specifically for it gets entered into a draw. The winner gets all three books (or can nominate someone to send them to).
I'm hoping that when Malevolence: Tales From Beyond The Veil comes out Saxon & Khan (my short story) will be well-received, and hopefully lead to readers stumbling onto my other work. I shan't give anything about it awa
Of course, the best way, still, for promotion is through word-of-mouth. So, if you enjoyed Sir Edric's Temple, Journey to Altmortis or Bane of Souls, do let your friends know. It'll help them find a good book, and help me out quite a bit as well.