I'm assuming you live in the Northeast or a similar cold climate. First, the upgrade from Oil to Gas is fantastic. It's cheaper, more convenient, and your boiler will last longer with less maintenance. Way to go!
I do want to ask if you considered a geothermal heat pump? I'm about to replace my gas boiler, so I investigated geothermal with Dandelion energy. There are some pretty good tax incentives, but for me, the numbers didn't quite work out. Geothermal would be cheaper long-term, but due to the high upfront costs, the breakeven point was ~20 years. However, I already have gas. If you're looking at converting to gas, avoiding that $10K gas connection cost would probably knock 10-15 years off the payback time, so you might want to check it out.
Now back to your original question. I would consider running the lines for the clothes dryer and stove/oven, as it sounds like you would consider switching to gas appliances in the future when your existing ones wear out. Many people do prefer cooking on gas stoves, so even just having that connection will increase the value of your home. The clothes dryer is more of a toss-up. Gas is slightly cheaper, but otherwise gas vs. electric performance is pretty comparable. Also, unless you are running a laundry mat, the savings are likely to be $30-60/year, so it's going to be a long time before you recover a $600 investment.
I would not run lines for a fireplace or gas grill, since I do not believe that just having the connection would impress too many home buyers. Gas fireplaces and built-in grills are nice options in high-end luxury homes, but since you do not already have these, I'm guessing you are not in that type of market. Further, to capture that value in a home sale, you would have to actually complete those upgrades, in which case you would probably only recapture a fraction of the cost. Bottom line, unless you are dying to have one or both of these for yourself, don't bother.