Depends on. There will be different kinds of titles. The hereditary feudal titles, such as Count of Holland, will still be limited to one per character in acquisition, even though he can inherit as many as his family connections allow.
Others, of more admisitrative nature, are not affected by that and can be acquired unlimited. In some occasions it is even required to hold a feudal title before being granted one of the more important administrative title.
There also will be again clerical titles for generals. These will now also be open to family members (with some restrictions). This is because the much enlarged family trees now also hold the middle and lesser nobility that often held the local bishops titles.