It's hard to speculate how much of what eventually happened on DS9 with it's character relationships if one element was replaced by an already known character - Laren etc.
I just tend to look at it as one of those fortunate happenstances that she was unwilling to commit to a series and we got Nana Visitor and Kira instead!
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist