Sure EA may sell less soulstones if we got more char slots but I don't think they would lose accounts as more would stay and many use their second account for a second house.
I'm all for more char slots, as players like playing different roles/chars. I have Freja, who is my PvM and PvP char. I like roleplay this char. Then I have Tina Tink, she was my smith, now she is my multy crafter. It's a pain switching skills on the soulstones all the time. I still have my tamer and my cook, scriber and Alchemist. I would love to have a fisher/tresure hunter and a miner/lumber girl. I would also love to get my tailor back on her own char again.
I really believe the one char only hurt us badly. Each time we get new templates, players will go to their old shard to try them out and they may not come back to Siege.
Yeah and not only do you have to switch skills like someone pointed out there is also stat redistribution you may need to worry about. But yeah one char only has hurt us badly I think. Soulstones did help the problem but like I said not everyone can afford lots of soulstones. I think even if it was just one more slot we would get some more people willing to try Siege. Same thing with the house thing even if they were limited to a tiny house that they had to refresh every week or so.