From what I've seen, there are many products available with formulations including hydrolised oat fiber, pectin, corn syrup, rice syrup, xanthan gum, whey extracts
one particular made me laugh, claiming to be a "halal pork fat replacer".
http://www.foodnavigator.com/news/ng.as ... -fat-halal
re-reading carefully it made more sense
Having the texture of backfat, this might work well in sausage,