We are reviewing the limits to all of the properties and names but this is an on-going exercise so we cannot provide any firm details of changes we may make in the future. From your post it would be helpful to know what names you are aliasing and why you are doing so. Perhaps there is an alternative method for achieving what you wish to do.
If you use multiple aliases in one net name - something of the form a|b,c,d - you could try to replace it with separate nets of names a|b a|c a|d. The effect should be the same.