While this is a tangent from the OP, you make a good point about something. As mentioned up-thread, a lack of Norman rule
≠ isolationism or Scandinavia-only activity, given that they'd already gotten involved with the HRE, establishing regular contact at least with Central Europe and Italy which opens up plenty of possibilities to get involved in France or Iberia down the road (sorry
@FairlyUninformedGraduate but I disagree with your #36 post of English non-relevance to Western Europe sans Hastings). To break things down as simply as I can, I'd imagine an A-S England to look less like the Nordic countries and more like a bigger, more populated Netherlands in terms of economy and foreign relations in the long-term. The healthy HRE connection, if nothing else, makes room for this 'development path' vice places like Denmark/Norway/Sweden.
As for exploration, I've been convinced that England's late start to the colonialism game had as much to do (if not moreso) with domestic/religious strife and economic instability than any other combination of factors. Why? Because if you look at the 1100-1500 timeframe of England IOTL, a near-constant refrain is one of either
domestic/
near-abroad warfare,
fiduciary wastage, and/or several kings of...
questionable objective suitability for the throne (the curse of every pre-modern monarchy is you're gonna get a bad king/queen sooner or later, after all). And for every innovation implemented in England during this period, I can't see how any of them would be less effective in a less/non-feudalistic reign, a la the Normans/Plantagenets. For the record, while the Reconquista was obviously a thing and that still didn't hinder Luso-Spanish colonial exploits, it was A) a case of a common external foe for both kingdoms that had to be ejected, not an endemic series of large-scale intra-dynastic feuds, and B) it had built up increasing momentum from the 13th Century onwards with a decisive end, not a back-and-forth-only quagmire like the HYW was...hence, not comparable in this discussion.
Granted, Iberia's still gonna be the region kick-starting the Age of Exploration (loathe as I am to admit it, they've got too many geographic and economic boons to not, without a much-earlier-than-1100 POD). However, just because one discovers a place doesn't mean one gets to keep it; that depends on who gets somewhere first with the most number of dudes holding pointy and 'splodey things, and keeps that manpower stocked up. Again, mental images of the Dutch East Indies and/or the
Groot Desseyn (only in Anglisc) come to mind, and unlike the Netherlands they'd have a much larger/more well-resourced armed force to shore up any claims/conquests, even with a mercantile-only mindset. Sure, Vinland's a bit of a gimme in terms of where they may start, but furs and fisheries only go so far compared to trade in spices and/or valuable metals, and being a peripheral island nation at the junction of the Atlantic and the North Sea A) IMO makes a desire to bypass trans-continental trade routes by going over-ocean at least as strong as in OTL, B) is in a good place to conduct/control trade between Central/Eastern Europe and NW Europe a la the OTL Seven Provinces, and C) may not directly abut advantageous currents like Portugal does, but Plymouth, Portsmouth, and Bristol are a lot closer to them than Amsterdam, Middleburg, or Rotterdam, so I can't see any real disadvantage by comparison to the Dutch.
Again though, a bit of a digression so my apologies for any derailment.